博士（工学）, 広島大学

Bose-Einstein condensate

quantum degenerate gases

ボース・アインシュタイン凝縮

量子凝縮気体

Natural sciences, Semiconductors, optical and atomic physics

2006 - 2015
電気通信大学, 助教授、准教授

2015
電気通信大学, 教授

2000 - 2006
東京工業大学, 助手

1999 - 2000
東京大学, 日本学術振興会特別研究員

1997 - 1999
広島大学, 日本学術振興会特別研究員

1996 - 1999
Hiroshima University, Graduate School, Division of Engineering, 材料工学

1996
Keio University, 理工学研究科, 物理学専攻

1994
Keio University, Faculty of Science and Engineering, 物理学科

1987 - 1990
慶應義塾高等学校

Spontaneous creation of skyrmions in a two-component Bose-Einstein condensate
Rabeea Kiran; Hiroki Saito
Corresponding, Physical Review A, American Physical Society (APS), 111, 1, 02 Jan. 2025, Peer-reviwed
Scientific journal

Kolmogorov-Hinze Scales in Turbulent Superfluids
Tsuyoshi Kadokura; Hiroki Saito
Corresponding, Physical Review Letters, American Physical Society (APS), 133, 25, 16 Dec. 2024, Peer-reviwed
Scientific journal

Quantum droplets with magnetic vortices in spinor dipolar Bose-Einstein condensates
Shaoxiong Li; Hiroki Saito
Corresponding, Physical Review Research, American Physical Society (APS), 6, 4, L042049-1-L042049-10, 25 Nov. 2024, Peer-reviwed, Motivated by the recent experimental realization of a Bose-Einstein condensate (BEC) of europium atoms, we investigate the self-bound droplet state for a dipolar BEC with spin degrees of freedom. Under a sufficiently weak magnetic field, the droplet has a torus shape with circulating spin vectors, which is referred to as a magnetic vortex. The ground state transforms from a torus to a cigar shape through bistability with increasing magnetic field. Dynamical change of the magnetic field causes the torus to rotate due to the Einstein–de Haas effect. The magnetic vortices form a supersolid in a confined system.

Published by the American Physical Society 2024
Scientific journal

Phase separation and metastability in a mixture of spin-1 and spin-2 Bose-Einstein condensates
Uyen Ngoc Le; Hieu Binh Le; Hiroki Saito
Corresponding, Physical Review A, American Physical Society (APS), 110, 3, 25 Sep. 2024, Peer-reviwed
Scientific journal

Engineering Mixing Properties of Fluids by Spatial Modulations
Abid Ali; Hiroki Saito
Corresponding, Physical Review Letters, American Physical Society (APS), 132, 17, 23 Apr. 2024, Peer-reviwed
Scientific journal

Long Lifetime Supersolid of Two Component Dipolar BEC: Dynamics of Supersolid Formation
Shaoxiong Li; Hiroki Saito
Corresponding, Proceedings of the 29th International Conference on Low Temperature Physics (LT29), Journal of the Physical Society of Japan, 22 May 2023, Peer-reviwed
International conference proceedings

Rossby–Haurwitz Wave in a Rotating Bubble-Shaped Bose–Einstein Condensate
Hiroki Saito; Masazumi Hayashi
Corresponding, Journal of the Physical Society of Japan, Physical Society of Japan, 92, 4, 15 Apr. 2023, Peer-reviwed
Scientific journal

Dynamics of spin-nematic bright solitary waves in spin-tensor-momentum coupled Bose-Einstein condensates
Xu Qiu; Ai-Yuan Hu; Yongyong Cai; Hiroki Saito; Xiao-Fei Zhang; Lin Wen
Physical Review A, American Physical Society (APS), 107, 3, 09 Mar. 2023, Peer-reviwed
Scientific journal

Phase separation and multistability of a two-component Bose-Einstein condensate in an optical cavity
Abid Ali; Farhan Saif; Hiroki Saito
Corresponding, Physical Review A, 105, 063318/1-063318/9, 17 Jun. 2022, Peer-reviwed
Scientific journal, English

Long-lifetime supersolid in a two-component dipolar Bose-Einstein condensate
Shaoxiong Li; Uyen Ngoc Le; Hiroki Saito
Corresponding, Physical Review A, 105, L061302/1-L061302/7, 13 Jun. 2022, Peer-reviwed
Scientific journal, English

Spin-orbit-coupled Bose gases with nonlocal Rydberg interactions held under a toroidal trap
Xiao-Fei Zhang; Lin Wen; Lin-Xue Wang; G.-P. Chen; R.-B. Tan; Hiroki Saito
Physical Review A, 105, 033306/1-033306/9, 14 Mar. 2022, Peer-reviwed
Scientific journal, English

Hydrodynamic generation of skyrmions in a two-component Bose-Einstein condensate
Kyoshiro Sakaguchi; Keisuke Jimbo; Hiroki Saito
Corresponding, Physical Review A, 105, 013312/1-013312/7, 14 Jan. 2022, Peer-reviwed
Scientific journal, English

Surfactant behavior in three-component Bose-Einstein condensates
Keisuke Jimbo; Hiroki Saito
Corresponding, Physical Review A, 103, 063323/1-063323/10, 28 Jun. 2021, Peer-reviwed
Scientific journal, English

Human-Machine Collaboration in Quantum Many-Body Problems
Hiroki Saito
Journal of the Physical Society of Japan, 17, 06/1-06/2, 30 Jun. 2020, Invited
Scientific journal, English

Creation and Manipulation of Quantized Vortices in Bose–Einstein Condensates Using Reinforcement Learning
Hiroki Saito
Journal of the Physical Society of Japan, 89, 074006/1-074006/8, 24 Jun. 2020, Peer-reviwed
Scientific journal, English

Effects of atom numbers on the miscibility-immiscibility transition of a binary Bose-Einstein condensate
Lin Wen; Hui Guo; Ya-Jun Wang; Ai-Yuan Hu; Hiroki Saito; Chao-Qing Dai; Xiao-Fei Zhang
Physical Review A, 101, 033610/1-033610/9, 13 Mar. 2020, Peer-reviwed
Scientific journal, English

Neural-network quantum states at finite temperature
Naoki Irikura; Hiroki Saito
Corresponding, Physical Review Research, 2, 013284/1-013284/6, 09 Mar. 2020, Peer-reviwed
Scientific journal, English

Faraday patterns generated by Rabi oscillation in a binary Bose-Einstein condensate
Terun Chen; Kosuke Shibata; Yujiro Eto; Takuya Hirano; Hiroki Saito
Corresponding, Physical Review A, American Physical Society (APS), 100, 6, 063610/1-063610/7, 05 Dec. 2019, Peer-reviwed
Scientific journal, English

Dissipation-assisted coherence formation in a spinor quantum gas
Y. Eto; H. Shibayama; K. Shibata; A. Torii; K. Nabeta; H. Saito; T. Hirano
Physical Review Letters, American Physical Society (APS), 122, 24, 245301/1-245301/5, 21 Jun. 2019, Peer-reviwed
Scientific journal, English

Symmetry-breaking instability of leapfrogging vortex rings in a Bose-Einstein condensate
Mayumi Ikuta; Yumi Sugano; Hiroki Saito
Corresponding, Physical Review A, 99, 043610/1-043610/8, 09 Apr. 2019, Peer-reviwed
Scientific journal, English

Interaction modulation in a long-lived Bose-Einstein condensate by rf coupling
K. Shibata; A. Torii; H. Shibayama; Y. Eto; H. Saito; T. Hirano
Physical Review A, American Physical Society (APS), 99, 1, 013622/1-013622/7, 24 Jan. 2019, Peer-reviwed
Scientific journal, English

Orthogonal and antiparallel vortex tubes and energy cascades in quantum turbulence
Tsuyoshi Kadokura; Hiroki Saito
Corresponding, Physical Review Fluids, 3, 104606/1-104606/12, 17 Oct. 2018, Peer-reviwed
Scientific journal, English

Stationary states and rotational properties of spin–orbit-coupled Bose–Einstein condensates held under a toroidal trap
Zhang-Ming He; Xiao-Fei Zhang; Masaya Kato; Wei Han; Hiroki Saito
Physics Letters, Section A: General, Atomic and Solid State Physics, Elsevier B.V., 382, 25, 1690-1694, 26 Jun. 2018, Peer-reviwed
Scientific journal, English

Dynamics of vortices followed by the collapse of ring dark solitons in a two-component Bose-Einstein condensate
Lin-Xue Wang; Chao-Qing Dai; Lin Wen; Tao Liu; Hai-Feng Jiang; Hiroki Saito; Shou-Gang Zhang; Xiao-Fei Zhang
Physical Review A, American Physical Society, 97, 6, 063607/1-063607/7, 11 Jun. 2018, Peer-reviwed
Scientific journal, English

Fingering instabilities and pattern formation in a two-component dipolar Bose-Einstein condensate
Kui-Tian Xi; Tim Byrnes; Hiroki Saito
Physical Review A, American Physical Society, 97, 2, 023625/1-023625/9, 16 Feb. 2018, Peer-reviwed
Scientific journal, English

Spinor dynamics in a mixture of spin-1 and spin-2 Bose-Einstein condensates
Yujiro Eto; Hitoshi Shibayama; Hiroki Saito; Takuya Hirano
Physical Review A, American Physical Society, 97, 2, 021602/1-021602/5, 13 Feb. 2018, Peer-reviwed
Scientific journal, English

Ground-state phases of a mixture of spin-1 and spin-2 Bose-Einstein condensates
Naoki Irikura; Yujiro Eto; Takuya Hirano; Hiroki Saito
Physical Review A, American Physical Society, 97, 2, 023622/1-023622/10, 13 Feb. 2018, Peer-reviwed
Scientific journal, English

Non-equilibrium dynamics induced by miscible-immiscible transition in binary Bose-Einstein condensates (vol 18, 073029, 2016)
Eto Yujiro; Takahashi Masahiro; Kunimi Masaya; Saito Hiroki; Hirano Takuya
New Journal of Physics, 20, 2018, Peer-reviwed

Machine learning technique to find quantum many-body ground states of bosons on a lattice
Hiroki Saito; Masaya Kato
Journal of the Physical Society of Japan, Physical Society of Japan, 87, 1, 014001/1-014001/8, 2018, Peer-reviwed
Scientific journal, English

Method to solve quantum few-body problems with artificial neural networks
Hiroki Saito
Journal of the Physical Society of Japan, Physical Society of Japan, 87, 7, 074002/1-074002/6, 2018, Peer-reviwed
Scientific journal, English

Bouncing motion and penetration dynamics in multicomponent Bose-Einstein condensates (vol 93, 033615, 2016)
Yujiro Eto; Masahiro Takahashi; Keita Nabeta; Ryotaro Okada; Masaya Kunimi; Hiroki Saito; Takuya Hirano
PHYSICAL REVIEW A, 96, 6, Dec. 2017, Peer-reviwed
English

Moving obstacle potential in a spin-orbit-coupled Bose-Einstein condensate
Masaya Kato; Xiao-Fei Zhang; Hiroki Saito
PHYSICAL REVIEW A, 96, 3, 033613/1-033613/8, Sep. 2017, Peer-reviwed
Scientific journal, English

Solving the Bose-Hubbard model with machine learning
Hiroki Saito
Journal of the Physical Society of Japan, The Physical Society of Japan, 86, 9, 093001/1-093001/4, 31 Jul. 2017, Peer-reviwed
Scientific journal, English

Vortex pairs in a spin-orbit-coupled Bose-Einstein condensate
Masaya Kato; Xiao-Fei Zhang; Hiroki Saito
PHYSICAL REVIEW A, 95, 4, 043605/1-7, Apr. 2017, Peer-reviwed
Scientific journal, English

Spin-orbit-coupled Bose-Einstein condensates held under a toroidal trap
Xiao-Fei Zhang; Masaya Kato; Wei Han; Shou-Gang Zhang; Hiroki Saito
PHYSICAL REVIEW A, 95, 3, 033620 1-7, Mar. 2017, Peer-reviwed
Scientific journal, English

Phase separation of Rabi-coupled spin states in an⁸⁷Rb F = 1 BEC
Shibata K; Shibayama H; Torii A; Suzuki R; Toda H; Eto Y; Takahashi M; Saito H; Hirano T
Optics InfoBase Conference Papers, Part F78-JSAP 2017, 2017, Peer-reviwed

Phase separation dynamics of two-component bose-einstein condensates in various optical trap shapes
Shibayama H; Torii A; Shibata K; Eto Y; Saito H; Hirano T
Optics InfoBase Conference Papers, Part F78-JSAP 2017, 2017, Peer-reviwed

Observation of self-organized coherence in dissipative spinor Bose-Einstein condensates
Eto Y; Shibayama H; Torii A; Saito H; Hirano T
Optics InfoBase Conference Papers, Part F78-JSAP 2017, 2017, Peer-reviwed

Topological defect formation in rotating binary dipolar Bose-Einstein condensate
Xiao-Fei Zhang; Wei Han; Hai-Feng Jiang; Wu-Ming Liu; Hiroki Saito; Shou-Gang Zhang
Annals of Physics, 375, 368-377, Nov. 2016, Peer-reviwed
Scientific journal, English

Twisted spin vortices in a spin-1 Bose-Einstein condensate with Rashba spin-orbit coupling and dipole-dipole interaction
Masaya Kato; Xiao-Fei Zhang; Daichi Sasaki; Hiroki Saito
PHYSICAL REVIEW A, 94, 4, Oct. 2016, Peer-reviwed
Scientific journal, English

Self-rotation and synchronization in exciton-polariton condensates
Hiroki Saito; Rina Kanamoto
PHYSICAL REVIEW B, 94, 16, 165306-1-165306-6, Oct. 2016, Peer-reviwed
Scientific journal, English

Twisted spin vortices in a spinor-dipolar Bose-Einstein condensate with Rashba spin-orbit coupling
Masaya Kato; Xiao-Fei Zhang; Daichi Sasaki; Hiroki Saito
Physical Review A, 94, 043633-1-043633-6, Oct. 2016, Peer-reviwed
Scientific journal, English

Double-quantum spin vortices in SU(3) spin-orbit-coupled Bose gases
Wei Han; Xiao-Fei Zhang; Shu-Wei Song; Hiroki Saito; Wei Zhang; Wu-Ming Liu; Shou-Gang Zhang
PHYSICAL REVIEW A, 94, 3, 033611-1-033611-9, Sep. 2016, Peer-reviwed
Scientific journal, English

Nonequilibrium dynamics induced by miscible-immiscible transition in binary Bose-Einstein condensates
Yujiro Eto; Masahiro Takahashi; Masaya Kunimi; Hiroki Saito; Takuya Hirano
NEW JOURNAL OF PHYSICS, 18, 073029-1-073029-6, Jul. 2016, Peer-reviwed
Scientific journal, English

Collision dynamics of skyrmions in a two-component Bose-Einstein condensate
Tomoya Kaneda; Hiroki Saito
PHYSICAL REVIEW A, 93, 3, 033611-1-033611-6, Mar. 2016, Peer-reviwed
Scientific journal, English

Bouncing motion and penetration dynamics in multicomponent Bose-Einstein condensates
Yujiro Eto; Masahiro Takahashi; Keita Nabeta; Ryotaro Okada; Masaya Kunimi; Hiroki Saito; Takuya Hirano
PHYSICAL REVIEW A, 93, 3, 033615/1-033615/6, Mar. 2016, Peer-reviwed
Scientific journal, English

Droplet formation in a Bose-Einstein condensate with strong dipole-dipole interaction
Kui-Tian Xi; Hiroki Saito
Physical Review A, American Physical Society, 93, 1, 15 Jan. 2016, Peer-reviwed
Scientific journal, English

Droplet formation in a Bose-Einstein condensate with strong dipole-dipole interaction
Kui-Tian Xi; Hiroki Saito
PHYSICAL REVIEW A, 93, 1, 011604, Jan. 2016, Peer-reviwed
Scientific journal, English

Path-integral monte carlo study on a droplet of a dipolar bose-Einstein condensate stabilized by quantum fluctuation
Hiroki Saito
Journal of the Physical Society of Japan, Physical Society of Japan, 85, 5, 053001/1-4, 2016, Peer-reviwed
Scientific journal, English

Can we swim in superfluids?: Numerical demonstration of self-propulsion in a Bose-Einstein condensate
Hiroki Saito
Journal of the Physical Society of Japan, The Physical Society of Japan, 84, 11, 114001-1-114001-6, Oct. 2015, Peer-reviwed, We numerically investigated whether a deformable object can propel itself in a superfluid. Articulated bodies and multicomponent condensates are examined as swimmers. An articulated two-body swimmer cannot obtain locomotion without emitting excitations. More flexible swimmers can do so without the need to excite waves.
Scientific journal, English

Suppression of relative flow by multiple domains in two-component Bose-Einstein condensates
Yujiro Eto; Masaya Kunimi; Hidekatsu Tokita; Hiroki Saito; Takuya Hirano
PHYSICAL REVIEW A, 92, 1, 013611-1-013611-5, Jul. 2015, Peer-reviwed
Scientific journal, English

Energy shift of magnons in a ferromagnetic spinor-dipolar Bose-Einstein condensate
Hiroki Saito; Masaya Kunimi
PHYSICAL REVIEW A, 91, 4, 041603(R)-1-041603(R)-4, Apr. 2015, Peer-reviwed
Scientific journal, English

Upper bound of one-magnon excitation and lower bound of effective mass for ferromagnetic spinor Bose and Fermi gases
Masaya Kunimi; Hiroki Saito
PHYSICAL REVIEW A, 91, 4, 043624-1-043624-6, Apr. 2015, Peer-reviwed
Scientific journal, English

16aBA-8 Effects of magnetic dipole interaction on magnon dispersion relation in a spinor BEC
SAITO Hiroki; KUNIMI Masaya
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 70, 447-447, 2015
Japanese

16aBA-9 Upper bound of one-magnon excitations for ferromagnetic spinor gases
Kunimi Masaya; Saito Hiroki
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 70, 448-448, 2015
Japanese

Dynamics of a vortex dipole across a magnetic phase boundary in a spinor Bose-Einstein condensate
Tomoya Kaneda; Hiroki Saito
PHYSICAL REVIEW A, 90, 5, 053632-1-053632-7, Nov. 2014, Peer-reviwed
Scientific journal, English

Hysteresis in quantized vortex shedding
Tsuyoshi Kadokura; Jun Yoshida; Hiroki Saito
PHYSICAL REVIEW A, 90, 1, 013612-1-013612-5, Jul. 2014, Peer-reviwed
Scientific journal, English

Control of spin current in a Bose gas by periodic application of pi pulses
Yujiro Eto; Mark Sadgrove; Sho Hasegawa; Hiroki Saito; Takuya Hirano
PHYSICAL REVIEW A, 90, 1, 013626, Jul. 2014, Peer-reviwed
Scientific journal, English

Comment on "Ground-state fragmentation phase transition for attractive bosons in anisotropic traps"
Hiroki Saito
PHYSICAL REVIEW A, 89, 6, 067601-1-067601-2, Jun. 2014, Peer-reviwed
Scientific journal, English

Observation of Dipole-Induced Spin Texture in an Rb-87 Bose-Einstein Condensate
Yujiro Eto; Hiroki Saito; Takuya Hirano
PHYSICAL REVIEW LETTERS, 112, 18, 185301, May 2014, Peer-reviwed
Scientific journal, English

Many-body dynamics of a Bose-Einstein condensate collapsing by quantum tunneling
Hiroki Saito
PHYSICAL REVIEW A, 89, 2, 023610, Feb. 2014, Peer-reviwed
Scientific journal, English

Kibble-Zurek mechanism in a trapped ferromagnetic Bose-Einstein condensate
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
J. Phys.: Condens. Matter 25, 404212 (2013), 25, 404212, Sep. 2013, Peer-reviwed
Scientific journal, English

Dissipative structures of quantized vortices in a coherently pumped polariton superfluid
Tomohiko Aioi; Tsuyoshi Kadokura; Hiroki Saito
PHYSICAL REVIEW B, 87, 20, 205312, May 2013, Peer-reviwed
Scientific journal, English

Control and detection of the Larmor precession of F=2 87Rb Bose-Einstein condensates by Ramsey interferometry and spin echo
Yujiro Eto; Sawako Sekine; Sho Hasegawa; Mark Sadgrove; Hiroki Saito; Takuya Hirano
Applied Physics Express, 6, Apr. 2013, Peer-reviwed
Scientific journal, English

Order-Disorder Oscillations in Exciton-Polariton Superfluids
Hiroki Saito; Tomohiko Aioi; Tsuyoshi Kadokura
PHYSICAL REVIEW LETTERS, 110, 2, 026401, Jan. 2013, Peer-reviwed
Scientific journal, English

Modulation of a quantized vortex street with a vibrating obstacle
Hiroki Saito; Kenta Tazaki; Tomohiko Aioi
Procedia IUTAM, 9, 121-128, 2013, Peer-reviwed
International conference proceedings, English

Benard-von Karman vortex street in an exciton-polariton superfluid
Hiroki Saito; Tomohiko Aioi; Tsuyoshi Kadokura
PHYSICAL REVIEW B, 86, 1, 014504, Jul. 2012, Peer-reviwed
Scientific journal, English

Penetration of a vortex dipole across an interface of Bose-Einstein condensates
Tomohiko Aioi; Tsuyoshi Kadokura; Hiroki Saito
PHYSICAL REVIEW A, 85, 2, 023618, Feb. 2012, Peer-reviwed
Scientific journal, English

Rayleigh-Taylor instability in a two-component Bose-Einstein condensate with rotational symmetry
Tsuyoshi Kadokura; Tomohiko Aioi; Kazuki Sasaki; Tetsuo Kishimoto; Hiroki Saito
PHYSICAL REVIEW A, 85, 1, 013602, Jan. 2012, Peer-reviwed
Scientific journal, English

Controlled Generation and Manipulation of Vortex Dipoles in a Bose-Einstein Condensate
Tomohiko Aioi; Tsuyoshi Kadokura; Tetsuo Kishimoto; Hiroki Saito
PHYSICAL REVIEW X, 1, 2, 021003, Oct. 2011, Peer-reviwed
Scientific journal, English

Capillary instability in a two-component Bose-Einstein condensate
Kazuki Sasaki; Naoya Suzuki; Hiroki Saito
Physical Review A - Atomic, Molecular, and Optical Physics, 83, 5, 03 May 2011, Peer-reviwed
Scientific journal, English

Capillary instability in a two-component Bose-Einstein condensate
Kazuki Sasaki; Naoya Suzuki; Hiroki Saito
PHYSICAL REVIEW A, 83, 5, 053606, May 2011, Peer-reviwed
Scientific journal, English

Dynamics of bubbles in a two-component Bose-Einstein condensate
Kazuki Sasaki; Naoya Suzuki; Hiroki Saito
Physical Review A - Atomic, Molecular, and Optical Physics, 83, 3, 03 Mar. 2011, Peer-reviwed
Scientific journal, English

Dynamics of bubbles in a two-component Bose-Einstein condensate
Kazuki Sasaki; Naoya Suzuki; Hiroki Saito
PHYSICAL REVIEW A, 83, 3, 033602, Mar. 2011, Peer-reviwed
Scientific journal, English

Benard-von Karman vortex street in a Bose-Einstein condensate
Kazuki Sasaki; Naoya Suzuki; Hiroki Saito
PS64, Jan. 2011
International conference proceedings, English

Crossover between Kelvin-Helmholtz and counter-superflow instabilities in two-component Bose-Einstein condensates
Naoya Suzuki; Hiromitsu Takeuchi; Kenichi Kasamatsu; Makoto Tsubota; Hiroki Saito
PHYSICAL REVIEW A, 82, 6, 063604, Dec. 2010, Peer-reviwed
Scientific journal, English

Spontaneous magnetic ordering in a ferromagnetic spinor dipolar Bose-Einstein condensate
Yuki Kawaguchi; Hiroki Saito; Kazue Kudo; Masahito Ueda
PHYSICAL REVIEW A, 82, 4, 043627, Oct. 2010, Peer-reviwed
Scientific journal, English

Controlling phase separation of binary Bose-Einstein condensates via mixed-spin-channel Feshbach resonance
Satoshi Tojo; Yoshihisa Taguchi; Yuta Masuyama; Taro Hayashi; Hiroki Saito; Takuya Hirano
PHYSICAL REVIEW A, 82, 3, 033609, Sep. 2010, Peer-reviwed
Scientific journal, English

Connection between rotation and miscibility in a two-component Bose-Einstein condensate
Takayuki Shimodaira; Tetsuo Kishimoto; Hiroki Saito
PHYSICAL REVIEW A, 82, 1, 013647, Jul. 2010, Peer-reviwed
Scientific journal, English

Benard-von Karman Vortex Street in a Bose-Einstein Condensate
Kazuki Sasaki; Naoya Suzuki; Hiroki Saito
PHYSICAL REVIEW LETTERS, 104, 15, 150404, Apr. 2010, Peer-reviwed
Scientific journal, English

Quantum Kelvin-Helmholtz instability in phase-separated two-component Bose-Einstein condensates
Hiromitsu Takeuchi; Naoya Suzuki; Kenichi Kasamatsu; Hiroki Saito; Makoto Tsubota
PHYSICAL REVIEW B, 81, 9, 094517, Mar. 2010, Peer-reviwed
Scientific journal, English

Shear-flow Instability in Two-component Bose-Einstein Condensates
Hiromitsu Takeuchi; Naoya Suzuki; Kenichi Kasamatsu; Hiroki Saito; Makoto Tsubota
JOURNAL OF LOW TEMPERATURE PHYSICS, 158, 3-4, 384-390, Feb. 2010, Peer-reviwed
Scientific journal, English

Symmetry-breaking magnetization dynamics of spinor dipolar Bose-Einstein condensates
Shoichi Hoshi; Hiroki Saito
PHYSICAL REVIEW A, 81, 1, 013627, Jan. 2010
Scientific journal, English

NEW PHYSICS IN DIPOLAR BOSE-EINSTEIN CONDENSATES
Yuki Kawaguchi; Hiroki Saito; Masahito Ueda
LASER SPECTROSCOPY, 29-+, 2010
International conference proceedings, English

Rayleigh-Taylor instability and mushroom-pattern formation in a two-component Bose-Einstein condensate
Kazuki Sasaki; Naoya Suzuki; Daisuke Akamatsu; Hiroki Saito
PHYSICAL REVIEW A, 80, 6, 063611, Dec. 2009, Peer-reviwed
Scientific journal, English

Spin-dependent inelastic collisions in spin-2 Bose-Einstein condensates
Satoshi Tojo; Taro Hayashi; Tatsuyoshi Tanabe; Takuya Hirano; Yuki Kawaguchi; Hiroki Saito; Masahito Ueda
PHYSICAL REVIEW A, 80, 4, 042704, Oct. 2009, Peer-reviwed
Scientific journal, English

Comment On "Fragmented Metastable States Exist in an Attractive Bose-Einstein Condensate for Atom Numbers Well Above the Critical Number of the Gross-Pitaevskii Theory"
Hiroki Saito
PHYSICAL REVIEW LETTERS, 103, 1, 018901, Jul. 2009, Peer-reviwed
Scientific journal, English

Ferrofluidity in a Two-Component Dipolar Bose-Einstein Condensate
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
PHYSICAL REVIEW LETTERS, 102, 23, 230403, Jun. 2009, Peer-reviwed
Scientific journal, English

Coherent collapses of dipolar Bose-Einstein condensates for different trap geometries
J. Metz; T. Lahaye; B. Froehlich; A. Griesmaier; T. Pfau; H. Saito; Y. Kawaguchi; M. Ueda
NEW JOURNAL OF PHYSICS, 11, 055032, May 2009, Peer-reviwed
Scientific journal, English

スピノールＢＥＣおよびダイポールＢＥＣにおける量子渦の自発的生成
斎藤弘樹; 川口由紀; 上田正仁
数理解析研究所考究録１６４２, 京都大学, 1642, 79-86, Apr. 2009
International conference proceedings, Japanese

Magnetization of a half-quantum vortex in a spinor Bose-Einstein condensate
Shoichi Hoshi; Hiroki Saito
PHYSICAL REVIEW A, 78, 5, 053618, Nov. 2008, Peer-reviwed
Scientific journal, English

Spin-vortex nucleation in a Bose-Einstein condensate by a spin-dependent rotating trap
Hiroki Chiba; Hiroki Saito
PHYSICAL REVIEW A, 78, 4, 043602, Oct. 2008, Peer-reviwed
Scientific journal, English

Dynamical Casimir effect for magnons in a spinor Bose-Einstein condensate
Hiroki Saito; Hiroyuki Hyuga
PHYSICAL REVIEW A, 78, 3, 033605, Sep. 2008, Peer-reviwed
Scientific journal, English

d-wave collapse and explosion of a dipolar Bose-Einstein condensate
T. Lahaye; J. Metz; B. Froehlich; T. Koch; M. Meister; A. Griesmaier; T. Pfau; H. Saito; Y. Kawaguchi; M. Ueda
PHYSICAL REVIEW LETTERS, 101, 8, 080401, Aug. 2008, Peer-reviwed
Scientific journal, English

Kibble-Zurek Mechanism in Magnetization of a Spinor Bose-Einstein Condensate
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
Proceedings of the 9th international symposium on foundations of quantum mechanics in the light of new technology, 33, 2008
International conference proceedings, English

Stabilization of a Bose-Einstein droplet by hyperfine Rabi oscillations
Hiroki Saito; Randall G. Hulet; Masahito Ueda
PHYSICAL REVIEW A, 76, 5, 053619, Nov. 2007, Peer-reviwed
Scientific journal, English

Kibble-Zurek mechanism in a quenched ferromagnetic Bose-Einstein condensate
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
PHYSICAL REVIEW A, 76, 4, 043613, Oct. 2007, Peer-reviwed
Scientific journal, English

Symmetry breaking in scalar, spinor, and rotating Bose-Einstein condensates
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
NUCLEAR PHYSICS A, 790, 737C-741C, Jun. 2007
Scientific journal, English

Can spinor dipolar effects be observed in Bose-Einstein condensates?
Yuki Kawaguchi; Hiroki Saito; Masahito Ueda
PHYSICAL REVIEW LETTERS, 98, 11, Mar. 2007, Peer-reviwed
Scientific journal, English

Topological defect formation in a quenched ferromagnetic Bose-Einstein condensates
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
PHYSICAL REVIEW A, 75, 1, 013621, Jan. 2007
Scientific journal, English

Broken-axisymmetry phase of a spin-1 ferromagnetic Bose-Einstein condensate
Keiji Murata; Hiroki Saito; Masahito Ueda
PHYSICAL REVIEW A, 75, 1, 013607, Jan. 2007, Peer-reviwed
Scientific journal, English

Spontaneous circulation in ground-state spinor dipolar Bose-Einstein condensates
Yuki Kawaguchi; Hiroki Saito; Masahito Ueda
PHYSICAL REVIEW LETTERS, 97, 13, 130404, Sep. 2006, Peer-reviwed
Scientific journal, English

Stabilization of a matter-wave droplet in free space by feedback control of interatomic interactions
Hiroki Saito; Masahito Ueda
PHYSICAL REVIEW A, 74, 2, 023602, Aug. 2006, Peer-reviwed
Scientific journal, English

Critical fluctuations in a soliton formation of attractive Bose-Einstein condensates
R Kanamoto; H Saito; M Ueda
PHYSICAL REVIEW A, 73, 3, 033611, Mar. 2006, Peer-reviwed
Scientific journal, English

Einstein-de Haas effect in dipolar Bose-Einstein condensates
Y Kawaguchi; H Saito; M Ueda
PHYSICAL REVIEW LETTERS, 96, 8, 080405, Mar. 2006, Peer-reviwed
Scientific journal, English

Breaking of chiral symmetry and spontaneous rotation in a spinor Bose-Einstein condensate
H Saito; Y Kawaguchi; M Ueda
PHYSICAL REVIEW LETTERS, 96, 6, 065302, Feb. 2006
Scientific journal, English

Symmetry breaking in Bose-Einstein condensates
Masahito Ueda; Yuki Kawaguchi; Hiroki Saito; Rina Kanamoto; Tatsuya Nakajima
ATOMIC PHYSICS 20, 869, 165-+, 2006, Peer-reviwed
International conference proceedings, English

Diagnostics for the ground-state phase of a spin-2 Bose-Einstein condensate
Hiroki Saito; Masahito Ueda
Physical Review A - Atomic, Molecular, and Optical Physics, 72, 5, Nov. 2005, Peer-reviwed
Scientific journal, English

Spontaneous magnetization and structure formation in a spin-1 ferromagnetic Bose-Einstein condensate
Hiroki Saito; Masahito Ueda
Physical Review A - Atomic, Molecular, and Optical Physics, 72, 2, Aug. 2005, Peer-reviwed
Scientific journal, English

Symmetry breaking and enhanced condensate fraction in a matter-wave bright soliton
R Kanamoto; H Saito; M Ueda
PHYSICAL REVIEW LETTERS, 94, 9, 090404, Mar. 2005, Peer-reviwed
Scientific journal, English

Many-body analysis of the Hess-Fairbank effect in one-dimensional Bose-Einstein condensates with attractive interactions
R Kanamoto; H Saito; M Tsubota; M Ueda
JOURNAL OF LOW TEMPERATURE PHYSICS, 138, 3-4, 681-686, Feb. 2005, Peer-reviwed
Scientific journal, English

Emergence of Bloch bands in a rotating Bose-Einstein condensate
H Saito; M Ueda
PHYSICAL REVIEW LETTERS, 93, 22, 220402, Nov. 2004
Scientific journal, English

Bose-Einstein droplet in free space
H Saito; M Ueda
PHYSICAL REVIEW A, 70, 5, 053610, Nov. 2004
Scientific journal, English

Split-merge cycle, fragmented collapse, and vortex disintegration in rotating Bose-Einstein condensates with attractive interactions
H Saito; M Ueda
PHYSICAL REVIEW A, 69, 1, 013604, Jan. 2004
Scientific journal, English

Bright Solitons in a Two-Dimensional Bose-Einstein Condensate
Hiroki Saito; Masahito Ueda
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 72, 140-143, Nov. 2003, Peer-reviwed
Scientific journal, English

A Consistent Picture of a Collapsing Bose-Einstein Condensate
Masahito Ueda; Hiroki Saito
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 72, 127-133, Nov. 2003, Peer-reviwed
Scientific journal, English

Measurement-induced spin squeezing in a cavity
H Saito; M Ueda
PHYSICAL REVIEW A, 68, 4, 043820, Oct. 2003
Scientific journal, English

Stability of the quantized circulation of an attractive Bose-Einstein condensate in a rotating torus
R Kanamoto; H Saito; M Ueda
PHYSICAL REVIEW A, 68, 4, 043619, Oct. 2003
Scientific journal, English

Stability of the quantized circulation of an attractive Bose-Einstein condensate in a rotating torus
Rina Kanamoto; Hiroki Saito; Masahito Ueda
Physical Review A - Atomic, Molecular, and Optical Physics, American Physical Society, 68, 4 B, 043619/12, 2003
Scientific journal, English

Quantum phase transition in one-dimensional Bose-Einstein condensates with attractive interactions
R Kanamoto; H Saito; M Ueda
PHYSICAL REVIEW A, 67, 1, 013608, Jan. 2003
Scientific journal, English

Dynamically stabilized bright solitons in a two-dimensional Bose-Einstein condensate
H Saito; M Ueda
PHYSICAL REVIEW LETTERS, 90, 4, 040403, Jan. 2003
Scientific journal, English

Split instability of a vortex in an attractive Bose-Einstein condensate
H Saito; M Ueda
PHYSICAL REVIEW LETTERS, 89, 19, 190402, Nov. 2002
Scientific journal, English

Dynamical Casimir effect without boundary conditions
H Saito; H Hyuga
PHYSICAL REVIEW A, 65, 5, 053804, May 2002
Scientific journal, English

Mean-field analysis of collapsing and exploding Bose-Einstein condensates
H Saito; M Ueda
PHYSICAL REVIEW A, 65, 3, 033624, Mar. 2002
Scientific journal, English

Power laws and collapsing dynamics of a trapped Bose-Einstein condensate with attractive interactions
H Saito; M Ueda
PHYSICAL REVIEW A, 63, 4, 043601, Apr. 2001
Scientific journal, English

Intermittent implosion and pattern formation of trapped Bose-Einstein condensates with an attractive interaction
H Saito; M Ueda
PHYSICAL REVIEW LETTERS, 86, 8, 1406-1409, Feb. 2001
Scientific journal, English

First- and second-order coherence of scattered laser light from a trapped Bose-Einstein condensate
H Saito; M Ueda
PHYSICAL REVIEW A, 60, 5, 3990-3998, Nov. 1999
Scientific journal, English

A variational sum-rule approach to collective excitations of a trapped Bose-Einstein condensate
T Kimura; H Saito; M Ueda
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 68, 5, 1477-1480, May 1999
English

Squeezed few-photon states of the field generated from squeezed atoms
H Saito; M Ueda
PHYSICAL REVIEW A, 59, 5, 3959-3974, May 1999
Scientific journal, English

Quantum-controlled few-photon state generated by squeezed atoms
K Saito; M Ueda
PHYSICAL REVIEW LETTERS, 79, 20, 3869-3872, Nov. 1997
Scientific journal, English

The dynamical Casimir effect for an oscillating dielectric model
H Saito; H Hyuga
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 65, 11, 3513-3523, Nov. 1996
Scientific journal, English

Relaxation of Schrodinger cat states and displaced thermal states in a density operator representation
H Saito; H Hyuga
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 65, 6, 1648-1654, Jun. 1996
Scientific journal, English

Photon emission from a time-varying dielectric medium in a cavity
H Saito; H Hyuga
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 65, 5, 1139-1142, May 1996
Scientific journal, English

19aBK-10 Rabi Oscillation between Zeeman States in ^<87>Rb Bose-Einstein Condensate
Okada R; Nabeta K; Torii A; Takahashi M; Eto Y; Kunimi M; Saito H; Hirano T
The Physical Society of Japan (JPS), 2016, Meeting Abstracts of the Physical Society of Japan, 71, 0, 632-632, Japanese, 2189-079X, 110010056666, AA12721570

20pBR-7 Flow and current in muti-component cold atomic gases
Eto Y; Takahashi M; Hirano T; Kunimi M; Saito H
The Physical Society of Japan (JPS), 2016, Meeting Abstracts of the Physical Society of Japan, 71, 0, 1680-1681, Japanese, 2189-079X, 110010057667, AA12721570

Non-equilibrium dynamics induced by miscibility control in binary Bose-Einstein condensates
Eto Yujiro; Takahashi Masahiro; Kunimi Masaya; Saito Hiroki; Hirano Takuya
<p>多成分流体の空間的な構造形成は、非平衡過程や非線型現象を理解する上で重要な効果である。我々は、2成分ボース・アインシュタイン凝縮体の混和性を制御することにより、不安定な空間構造を持つ混ざり合う性質の2成分凝縮体を生成し、パターン形成ダイナミクスを観測することに成功した。発表では、混和性制御の方法や実験結果の詳細について紹介する。</p>, The Physical Society of Japan, 2016, Meeting Abstracts of the Physical Society of Japan, 71, 0, 505-505, Japanese, 130006246180

18aBA-5 Collision and oscillation damping in multicomponent Bose-Einstein condensates
Eto Y; Takahashi M; Okada R; Nabeta K; Kunimi M; Saito H; Hirano T
The Physical Society of Japan (JPS), 16 Sep. 2015, 日本物理学会講演概要集, 70, 2, 550-550, Japanese, 2189-079X, 110010030921, AA12721570

微弱な磁気双極子相互作用によるボース・アインシュタイン凝縮体 スピンの空間構造形成：磁性気体としての冷却Rb原子
衛藤雄二郎; 斎藤弘樹; 平野琢也
We observed the spin texture formation and the spatial modulation of the longitudinal magnetization in a spin-2 ^<87>Rb Bose-Einstein condensate. The observed results are compared with numerical simulations of the Gross-Pitaevskii equation, which are the effects due to the magnetic dipole-dipole interaction. These results show that the magnetic dipole-dipole interaction has significant effects even on spinor condensates of alkali metal atoms., The Physical Society of Japan (JPS), Aug. 2015, 日本物理学会誌, 70, 8, 614-619, Japanese, Invited, Introduction other, 0029-0181, 110009976843, AN00196952

22pAG-4 Stability of the spin domain in two-component Bose-Einstein condensates
Tokita H; Kunimi M; Okada R; Nabeta K; Eto Y; Saito H; Hirano T
The Physical Society of Japan (JPS), 21 Mar. 2015, 日本物理学会講演概要集, 70, 1, 665-665, Japanese, 2189-079X, 110009990721, AA12721570

磁気双極子相互作用するボース・アインシュタイン凝縮体
斎藤弘樹; 川口由紀; 上田正仁
Feb. 2011, 固体物理, 46, 21, Japanese, Introduction other

磁気双極子相互作用するボース・アインシュタイン凝縮体
川口由紀; 斎藤弘樹; 上田正仁
Magnetic dipole-dipole interaction in atomic Bose-Einstein condensates (BECs) can induce spin textures, even though it is weaker than other interactions. The key feature of the dipolar interaction is that it is spin-orbit coupling interaction which conserves total angular momentum. Therefore, at extremely low magnetic field, an initially spin-polarized BEC starts rotating spontaneously. Moreover, spin textures develop in the ground state, leading to spontaneous mass current. Such dipolar effect should be observed in a spinor BEC of ^<87>Rb atoms., The Physical Society of Japan (JPS), Aug. 2009, 日本物理学会誌, 64, 8, 623-627, Japanese, Introduction other, 0029-0181, 110007360062, AN00196952

磁性超流動体におけるスーパーノヴァ
斎藤弘樹; 川口由紀; 上田正仁
岩波書店, 2009, 科学, 79, 2, 139-141, Japanese, Introduction other, 0022-7625, 40016447141, AN00036810

ひとりでにできる量子渦
斎藤弘樹
2007, パリティ誌, 22, 1, 13-14, Japanese, Introduction other

An Attractive Bose-Einstein Condensate on a One-dimensional Ring
Kanamoto R; Saito H; Ueda M
The Physical Society of Japan (JPS), 13 Aug. 2002, Meeting abstracts of the Physical Society of Japan, 57, 2, 126-126, Japanese, 1342-8349, 110009720214, AA11439205

Relaxation of Schrodinger Cat States and Displaced Thermal States in a Density Operator Formalism
Hiroki Saito; Hiroyuki Hyuga
1996, Journal of the Phys. souty of Japan 65, 65, 6, 1648-1654, 0031-9015, 110001979926

物理学者、機械学習を使う：第２章 量子多体系とニューラルネットワーク
斎藤弘樹
Scholarly book, Japanese, Joint work, 第２章 量子多体系とニューラルネットワーク, 朝倉書店, Oct. 2019

Electromagnetic, Magnetostatic, and Exchange-Interaction Vortices in Confined Magnetic Structures
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
English, Joint work, Topological defect formation in spinor and dipolar Bose-Einstein condensates, Transworld Research Network, 2008

Emergent Nonlinear Phenomena in Bose-Einstein Condensates
Masahito Ueda; Hiroki Saito
English, Joint work, Vortex lattices in Bose-Einstein condensates: Theory, Springer, 2007

2 次元2 成分量子乱流におけるエンストロフィーカスケード
小林凌; 斎藤弘樹
Oral presentation, 日本物理学会第７９回年次大会
18 Sep. 2024

二成分超流動体の定常乱流におけるコルモゴロフ則
門倉強; 斎藤弘樹
Oral presentation, 日本物理学会第７９回年次大会
18 Sep. 2024

Quantum droplet in a spinor dipolar Bose-Einstein condensate
Shaoxiong Li; Hiroki Saito
Oral presentation, 日本物理学会第７９回年次大会
16 Sep. 2024

Spontaneous Creation of Skyrmions in a Two-Component Bose- Einstein Condensate
Rabeea Kiran; Hiroki Saito
Oral presentation, 日本物理学会第７９回年次大会
16 Sep. 2024

Ground and metastable states in a mixture of spin-1 and spin-2 BECs of 87Rb
Uyen Le; Hiroki Saito
Oral presentation, 日本物理学会 2024年春季大会
19 Mar. 2024

量子乱流におけるユニタリーなエネルギー散逸
門倉強; 斎藤弘樹
Oral presentation, 日本物理学会第７８回年次大会
18 Sep. 2023

バブル型トラップ中で回転するBECにおけるRossby-Haurwitz波
斎藤弘樹; 林正純
Oral presentation, 日本物理学会第７８回年次大会
18 Sep. 2023

Mixing properties of a two-component BEC in spin-dependent optical lattice
Abid Ali; Hiroki Saito
Oral presentation, 日本物理学会第７８回年次大会
16 Sep. 2023

粒子数散逸するSpin2 BECの量子多体計算
高橋岳志; 斎藤弘樹
Oral presentation, 日本物理学会第７８回年次大会
16 Sep. 2023

Long Lifetime Supersolid of Two Component Dipolar BEC
Shaoxiong Li; Hiroki Saito
Oral presentation, 34th IUPAP Conference on Computational Physics CCP2023
06 Aug. 2023

Supersolid of Two-Component Dipolar Bose-Einstein Condensate
Shaoxiong Li; Uyen Le; Hiroki Saito
Oral presentation, English, 日本物理学会２０２２年秋季大会, Domestic conference
14 Sep. 2022

Long Lifetime Supersolid of Two Component Dipolar BEC
Shaoxiong Li; Hiroki Saito
Poster presentation, English, 29th International Conference on Low Temperature Physics (LT29), International conference
19 Aug. 2022

Phase separation and optical multistability of two-component Bose-Einstein condensate in an optical cavity
Abid Ali; Hiroki Saito
Oral presentation, English, 日本物理学会第７７回年次大会, Domestic conference
15 Mar. 2022

２成分 BEC 中における障害物ポテンシャル後方での Skyrmion 生 成
坂口京志郎; 神保圭佑; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会第７７回年次大会, Domestic conference
15 Mar. 2022

３成分BECにおける界面活性剤的振る舞い
神保圭介; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会2021年秋期大会, オンライン, Domestic conference
20 Sep. 2021

Orthogonal and antiparallel vortex tubes and energy cascades in quantum turbulence
Tsuyoshi Kadokura; Hiroki Saito
Poster presentation, English, XXXII IUPAP Conference on Computational Physics, Online, International conference
02 Aug. 2021

超流動体の乱流状態におけるKolmogorov-Hinze スケール
門倉強; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会第７６回年次大会, Domestic conference
13 Mar. 2021

強化学習を用いたボース・アインシュタイン凝縮体の制御
Invited oral presentation, Japanese, ディープラーニングと物理学２０２０オンライン
03 Sep. 2020

ニューラルネットワークを用いた有限温度系の量子多体状態の計算
入倉直輝; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会 第75回年次大会, Domestic conference
19 Mar. 2020

ラビ結合した2成分BECにおけるパターン形成
陳特潤; 柴田康介; 衞藤雄二郎; 平野琢也; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会 第75回年次大会, Domestic conference
17 Mar. 2020

Orthogonal and antiparallel vortex tubes and energy cascades in quantum turbulence
Tsuyoshi Kadokura; Hiroki Saito
Poster presentation, English, Turbulence of All Kinds, 大阪市立大学, International conference
08 Jan. 2020

機械学習を用いたBose-Hubbard模型の相の分類
山本礼久; 入倉直輝; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会２０１９年秋季大会, Domestic conference
11 Sep. 2019

量子乱流における渦度分布の階層構造
門倉強; 斎藤弘樹
Poster presentation, Japanese, 第１６回原子・分子・光科学討論会, Domestic conference
14 Jun. 2019

スピン１・スピン２BECの混合系における基底状態の相図
入倉直輝; 衞藤雄二郎; 平野琢也; 斎藤弘樹
Poster presentation, Japanese, 第１６回原子・分子・光科学討論会, Domestic conference
14 Jun. 2019

複数量子渦輪の不安定性
菅野優美; 幾田麻友美; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会第７４回年次大会, Domestic conference
14 Mar. 2019

Ground states of Bose-Hubbard model and few-body problems with feedforward neural networks
Hiroki Saito
Invited oral presentation, English, Mini-workshop on "Machine Learning in Physics"
13 Sep. 2018

スピン1・スピン2BECの混合系における基底状態の相図
入倉直輝; 衞藤雄二郎; 平野琢也; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会２０１８年秋季大会, Domestic conference
09 Sep. 2018

磁気双極子相互作用するBECにおけるレイリー・テイラー不安定性
Kui-Tian Xi; Tim Byrnes; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会２０１８年秋季大会, Domestic conference
09 Sep. 2018

量子乱流における渦度分布の階層構造
門倉強; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会２０１８年秋季大会, Domestic conference
09 Sep. 2018

Quantum many-body problems and neural networks
Hiroki Saito
Invited oral presentation, English, The 3rd Beijing-Tokyo workshop on ultracold atoms, Invited, 清華大学、北京, International conference
25 Aug. 2018

Quantum many-body problems and neural networks
斎藤弘樹
Invited oral presentation, Japanese, 深層学習と物理２０１８, Domestic conference
01 Jun. 2018

ボース・アインシュタイン凝縮体の相分離ダイナミクス光トラップ形状依存性III
柴山均; 鳥居明季; 柴田康介; 高橋雅裕; 衞藤雄二郎; 斎藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会 第73回年次大会, 東京理科大学, Domestic conference
24 Mar. 2018

ラビ結合した２成分ボース・アインシュタイン凝縮体の相分離ダイナミクス
柴田康介; 柴山均; 鳥居明季; 戸田寛之; 鈴木涼太; 高橋雅裕; 衞藤雄二郎; 斎藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会 第73回年次大会, 東京理科大学, Domestic conference
24 Mar. 2018

機械学習を用いたBose-Hubbard模型の基底状態の計算法
斎藤弘樹; 加藤雅也
Oral presentation, Japanese, 日本物理学会 第73回年次大会, 東京理科大学, Domestic conference
22 Mar. 2018

Symmetry breaking magnetization in spinor Bose-Einsteini condensates
Hiroki Saito
Invited oral presentation, English, International Symposium on Fluctuation and Structure Out of Equilibrium 2017, Sendai, Japan, International conference
21 Nov. 2017

Phase separation and pattern formation of binary Bose-Einstein condensates in various optical trap shapes
H. Shibayama; A. Torii; K. Shibata; M. Takahashi; Y. Eto; H. Saito; T. Hirano
Poster presentation, English, International Symposium on Fluctuation and Structure Out of Equilibrium 2017, Sendai, Japan, International conference
21 Nov. 2017

Phase separation of Rabi-coupled spin states in an 87Rb F=1 BEC
A. Torii; R. Suzuki; H. Toda; H. Shibayama; K. Shibata; M. Takahashi; Y. Eto; H. Saito; T. Hirano
Poster presentation, English, International Symposium on Fluctuation and Structure Out of Equilibrium 2017, Sendai, Japan, International conference
21 Nov. 2017

Spin sculpting in dissipative spinor Bose-Einstein condensates
Y. Eto; H. Shibayama; A. Torii; H. Saio; T. Hirano
Poster presentation, English, International Symposium on Fluctuation and Structure Out of Equilibrium 2017, Sendai, Japan, International conference
20 Nov. 2017

ドーナツ型トラップ中におけるスピン軌道相互作用するBEC
Xiao-Fei Zhang; 加藤雅也; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会２０１７年秋季大会, Domestic conference
21 Sep. 2017

スピン軌道相互作用するBECにおける量子渦対
加藤雅也; Xiao-Fei Zhang; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会２０１７年秋季大会, Domestic conference
21 Sep. 2017

ボース・アインシュタイン凝縮体の相分離ダイナミクス光トラップ形状依存性II
柴山均; 鳥居明季; 柴田康介; 衞藤雄二郎; 斎藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会２０１７年秋季大会, Domestic conference
21 Sep. 2017

Observation of self-organized coherence in dissipative spinor Bose-Einstein condensates
Y. Eto; H. Shibayama; A. Torii; H. Saito; T. Hirano
Oral presentation, English, JSAP-OSA Joint Symposia, 福岡国際会議場, International conference
07 Sep. 2017

Phase separation of Rabi-coupled spin states in an 87Rb F = 1 BEC
K. Shibata; H. Shibayama; A. Torii; R. Suzuki; H. Toda; Y. Eto; M. Takahashi; H. Saito; T. Hirano
Oral presentation, English, JSAP-OSA Joint Symposia
07 Sep. 2017

Phase separation dynamics of two-component Bose-Einstein condensates in various optical trap shapes
H. Shibayama; A. Torii; K. Shibata; Y. Eto; H. Saito; T. Hirano
Oral presentation, English, JSAP-OSA Joint Symposia, International conference
07 Sep. 2017

Matter-wave droplets in a dipolar Bose-Einstein condensate
Hiroki Saito
Invited oral presentation, English, ADVANCES IN MATHEMATICAL MODELLING AND NUMERICAL SIMULATION OF SUPERFLUIDS, Invited, University of Rouen Normandy, Rouen, France, International conference
30 Aug. 2017

Vortices in spin-orbit coupled Bose-Einstein condensates
Hiroki Saito
Invited oral presentation, English, Mini Vortex Meeting, Invited, 沖縄科学技術大学院大学
05 Jul. 2017

スピン軌道相互作用するスピノール・ダイポールBECの基底状態
加藤雅也; Xiao-Fei Zhang; 佐々木大地; 斎藤弘樹
Poster presentation, Japanese, 第14会AMO討論会, Domestic conference
30 Jun. 2017

Self-oscillation in an exciton-polariton condensate
Hiroki Saito
Oral presentation, English, The 4th research area meeting on "Synergy of Fluctuation and Structure", University of Tokyo, Domestic conference
24 Jun. 2017

Phase separation dynamics of two-component Bose-Einstein condensate in various optical trap shapes
H. Shibayama; A. Torii; K. Shibata; Y. Eto; H. Saito; T. Hirano
Poster presentation, English, The 4th research area meeting on "Synergy of Fluctuation and Structure", University of Tokyo, Domestic conference
23 Jun. 2017

Spontaneous symmetry breaking in dissipative spinor Bose-Einstein condensates
A. Torii; M. Takahashi; H. Shibayama; Y. Eto; H. Saito; T. Hirano
Poster presentation, English, The 4th research area meeting on "Synergy of Fluctuation and Structure", University of Tokyo, Domestic conference
23 Jun. 2017

スピン1・スピン2混合ボース凝縮体におけるrephasingの観測
衞藤雄二郎; 柴山均; 斎藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会 第７２会年次大会, Domestic conference
19 Mar. 2017

ボース・アインシュタイン凝縮体相分離ダイナミクスの光トラップ形状依存性
柴山均; 岡田涼太郎; 衞藤雄二郎; 斉藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会 第７２会年次大会, Domestic conference
19 Mar. 2017

RFスピン制御された87Rbボース・アインシュタイン凝縮体におけるスピン交換衝突
鳥居明季; 鍋田慧太; 高橋雅裕; 柴山均; 衞藤雄二郎; 斎藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会 第７２会年次大会, Domestic conference
19 Mar. 2017

励起子ポラリトン凝縮体における自励振動と同期
斎藤弘樹; 金本理奈
Oral presentation, Japanese, 日本物理学会 第７２会年次大会, Domestic conference
17 Mar. 2017

スピン軌道相互作用するスピノール・ダイポールBECの基底状態
加藤雅也; Xiao-Fei Zhang; 佐々木大地; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会 第７２会年次大会, Domestic conference
17 Mar. 2017

混和性制御による2成分ボース・アインシュタイン凝縮体の非平衡ダイナミクス
衞藤雄二郎; 高橋雅裕; 國見昌哉; 斎藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会２０１６年秋季大会
15 Sep. 2016

ダイポールBECにおけるドロップレット形成
斎藤弘樹; Kui-Tian Xi
Oral presentation, Japanese, 日本物理学会２０１６年秋季大会
13 Sep. 2016

Double-quantum spin vortices in SU(3) spin-orbit coupled Bose gases
Xiao-Fei Zhang; Wei Han; Hiroki Saito
Oral presentation, English, 日本物理学会２０１６年秋季大会
13 Sep. 2016

Twisted spin vortices in a spinor-dipolar Bose-Einstein condensate with Rashba spin-orbit coupling
Masaya Kato; Xiao-Fei Zhang; Daichi Sasaki; Hiroki Saito
Poster presentation, English, Synthetic Topological Quantum Matter, KITPC, Beijing, International conference
01 Aug. 2016

Self-propulsion and skyrmion dynamics in Bose-Einstein condensates
Hiroki Saito
Oral presentation, English, The 3rd Research Area Meeting of "Synergy of Fluctuation and Structure", Kyushu University
19 Jun. 2016

Non-Equilibrium dynamics induced by miscible-immiscible transition in binary Bose-Einstein condensates
Y. Eto; M. Takahashi; M. Kunimi; H. Saito; T. Hirano
Poster presentation, English, The 3rd Research Area Meeting of "Synergy of Fluctuation and Structure", Kyushu University
18 Jun. 2016

Rabi coupling in Bose-Einstein condensates of 87Rb atoms
A. Torii; K. Nabeta; R. Okada; H. Shibayama; M. Takahashi; Y. Eto; H. Saito; T. Hirano
Poster presentation, English, The 3rd Research Area Meeting of "Synergy of Fluctuation and Structure"
18 Jun. 2016

Magnon Excitations in Spinor Cold Atomic Gases
Masaya Kunimi; Hiroki Saito
Poster presentation, English, CEMS Topical Meeting on Cold Atoms, 理化学研究所
10 Jun. 2016

Matter-wave droplets in a dipolar BEC of dysprosium
Hiroki Saito
Invited oral presentation, English, The first Beijing-Tokyo workshop on cold atom physics, Invited, Tsinghua Univ., Beijing, China, International conference
13 Apr. 2016

励起子ポラリトン超流動体におけるコヒーレント・インコヒーレントポンプを組み合わせた量子渦対生成
金子聡史; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会 第71回年次大会, Domestic conference
20 Mar. 2016

87Rbボース・アインシュタイン凝縮体におけるゼーマン準位間のラビ振動
岡田涼太郎; 鍋田慧太; 鳥居明季; 高橋雅裕; 衞藤雄二郎; 國見昌哉; 斎藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会第71回年次大会, Domestic conference
19 Mar. 2016

超流動体中の物体の自己推進
斎藤弘樹
Oral presentation, Japanese, 日本物理学会第71回年次大会, Domestic conference
19 Mar. 2016

二成分BECにおけるSkyrmionの衝突ダイナミクス
金田知也; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会第71回年次大会, Domestic conference
19 Mar. 2016

量子流体における流体不安定性
斎藤弘樹
Oral presentation, Japanese, 物性研短期研究会「量子乱流と古典乱流の邂逅」
05 Jan. 2016

空間構造の転写による２成分ボース・アインシュタイン凝縮体の非平衡ダイナミクス
衛藤雄二郎; 高橋雅裕; 國見昌哉; 斎藤弘樹; 平野琢也
Poster presentation, Japanese, 第９回物性科学領域横断研究会
14 Nov. 2015

多成分ボース・アインシュタイン凝縮体の衝突ダイナミクス
鍋田慧太; 衞藤雄二郎; 高橋雅裕; 岡田涼太郎; 國見昌哉; 斎藤弘樹; 平野琢也
Poster presentation, Japanese, 第９回物性科学領域横断研究会
14 Nov. 2015

二成分ボース・アインシュタイン凝縮体の多重ドメインによる相対流の抑制
鴇田秀克; 國見昌哉; 衞藤雄二郎; 斎藤弘樹; 平野琢也
Poster presentation, Japanese, 第９回物性科学領域横断研究会
14 Nov. 2015

スピノールBECのマグノン分散関係に対する磁気双極子相互作用の効果
斎藤弘樹; 國見昌哉
Oral presentation, Japanese, 日本物理学会2015年秋期大会, 関西大学
Sep. 2015

強磁性spinorガスにおける1マグノン励起の上限
國見昌哉; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会2015年秋期大会, 関西大学
Sep. 2015

多成分ボース・アインシュタイン凝縮体間の衝突と振動の緩和
衞藤雄二郎; 高橋雅裕; 岡田涼太郎; 鍋田慧太; 國見昌哉; 斎藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会2015年秋期大会, 関西大学
Sep. 2015

Magnon Excitations in Spinor Cold Atomic Gases
Masaya Kunimi; Hiroki Saito
Poster presentation, English, The international symposium on Quantum Fluids and Solids QFS2015, Niagara Falls, NY, USA
Aug. 2015

Collision-induced dynamics in multi-component Bose-Einstein condensates
K. Nabeta; Y. Eto; M. Takahashi; R. Okada; H. Tokita; M. Kunimi; H. Saito; T. Hirano
Poster presentation, English, International Symposium on Fluctuation and Structure out of Equilibrium 2015, 京都, International conference
Aug. 2015

Suppression of relative current by spin domain formation in immiscible Bose-Einstein condensates
R. Okada; H. Tokita; M. Kunimi; K. Nabeta; Y. Eto; H. Saito; T. Hirano
Poster presentation, English, International Symposium on Fluctuation and Structure out of Equilibrium 2015, International conference
Aug. 2015

Coherent control and observation of spin dynamics in Bose-Einstein condensates of 87Rb atoms
Y. Eto; H. Saito; T. Hirano
Poster presentation, English, International Symposium on Fluctuation and Structure out of Equilibrium 2015, International conference
Aug. 2015

Magnon excitations in spinor cold atomic gases
Masaya Kunimi; Hiroki Saito
Poster presentation, English, International Symposium on Fluctuation and Structure out of Equilibrium 2015, 京都, International conference
Aug. 2015

冷却原子気体におけるマグノンの分散関係
國見 昌哉; 斎藤 弘樹
Poster presentation, Japanese, ゆらぎと構造の協奏 第2回公開シンポジウム
01 May 2015

二成分ボース・アインシュタイン凝縮体におけるスピンドメインの安定性
平野 琢也; 鴇田 秀克; 岡田 涼太郎; 鍋田 慧太; 衛藤 雄二郎; 國見 昌哉; 斎藤 弘樹
Poster presentation, Japanese, ゆらぎと構造の協奏 第2回公開シンポジウム
01 May 2015

二成分ボース・アインシュタイン凝縮体におけるスピンドメインの安定性
鴇田; 國見; 岡田; 鍋田; 衛藤; 斎藤; 平野
Oral presentation, Japanese, 日本物理学会第７０会年次大会
22 Mar. 2015

スピノールBECにおける磁性相間の量子渦対の透過
金田知也; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会第７０会年次大会
21 Mar. 2015

トンネリングによる引力BEC崩壊の量子多体ダイナミクス
斎藤弘樹
Oral presentation, Japanese, 日本物理学会第７０会年次大会
21 Mar. 2015

Quantum hydrodynamics of ultracold atoms
Hiroki Saito
Oral presentation, English, Second MIPT-UEC Joint Workshop on Optical Science, International conference
Oct. 2014

スピノールBECの磁気双極子相互作用による空間構造形成
衛藤雄二郎; 斎藤弘樹; 平野琢也
Oral presentation, Japanese, 日本物理学会２０１４年秋季大会, Domestic conference
09 Sep. 2014

励起子ポラリトン超流動体における量子渦
斎藤弘樹
Keynote oral presentation, Japanese, 日本物理学会２０１４年秋季大会, Domestic conference
09 Sep. 2014

障害物後方への量子渦生成における双安定性
門倉強; 吉田隼; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会２０１４年秋季大会, Domestic conference
08 Sep. 2014

励起子ポラリトン超流動体における量子渦の散逸構造
相生智彦; 門倉強; 斎藤弘樹
Poster presentation, Japanese, 「ゆらぎと構造の協奏」第２回領域研究会, Domestic conference
30 Aug. 2014

Order-disorder oscillations in an exciton-polariton superfluid
Hiroki Saito; Tomohiko Aioi; Tsuyoshi Kadokura
Poster presentation, English, The 7th International Conference on Spontaneous Coherence in Excitonic Systems, Hakone, Japan, International conference
23 Apr. 2014

スピン２ボース・アインシュタイン凝縮体におけるラーモア歳差運動の測定
長谷川; 富山; 岩出; 鴇田,衛藤; 斎藤,平野
Oral presentation, Japanese, 日本物理学会第６９回年次大会, 東海大学, Domestic conference
28 Mar. 2014

ポラリトン超流動体における量子渦の散逸構造
相生智彦; 門倉強; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会第６９会年次大会, 東海大学, Domestic conference
27 Mar. 2014

Hydrodynamic instabilities in Bose-Einstein condensates
Hiroki Saito
Invited oral presentation, English, Workshop on Non-Equilibrium Complex Fluids, Invited, 首都大学東京, International conference
06 Mar. 2014

ボース・アインシュタイン凝縮体における構造形成
斎藤弘樹
Oral presentation, Japanese, 新学術領域研究「ゆらぎと構造の協奏」第一回研究会
Dec. 2013

励起子ポラリトン超流動体におけるパターンの崩壊と復活
斎藤弘樹; 相生智彦; 門倉強
Oral presentation, Japanese, 日本物理学会,２０１３年秋季大会
Sep. 2013

磁場勾配中のスピン２ボース・アインシュタイン凝縮体のラーモア歳差運動
衛藤; 長谷川; 富山; 鴇田; 岩出; Sadgrove; 斎藤,平野
Oral presentation, Japanese, 日本物理学会,２０１３年秋季大会
Sep. 2013

量子凝縮体
斎藤弘樹
Keynote oral presentation, Japanese, 第１０回原子・分子・光科学討論会, Domestic conference
Jun. 2013

Quantum hydrodynamics of ultracold atoms
Hiroki Saito
Public symposium, English, UEC-Shanxi Joint Workshop on Optical Science, UEC
Mar. 2013

励起子ポラリトン超流動体におけるカルマン渦列
相生智彦; 門倉強; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,第６８回年次大会
Mar. 2013

2成分BECにおける回転対称性を破るレイリー・テイラー不安定性
門倉強; 相生智彦; 岸本哲夫; 斎藤弘樹
Public symposium, Japanese, 農工大電通大第９回合同シンポジウム, 電気通信大学 東京農工大学
Dec. 2012

原子気体ボース・アインシュタイン凝縮体の流体力学的不安定性
斎藤弘樹
Keynote oral presentation, Japanese, ２０１２年秋季大会, 日本物理学会, Domestic conference
Sep. 2012

2成分BEC界面における量子渦対の透過
相生智彦; 門倉強; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,２０１２年秋季大会
Sep. 2012

スピン2ボース・アインシュタイン凝縮体におけるラーモア歳差運動の測定2
関根佐和子; 富山泰志; 長谷川翔; 池田隼人; 鈴木博祐; Mark Sadgrove; 衛藤雄二郎; 平野琢也; 斉藤弘樹
Oral presentation, Japanese, 日本物理学会,２０１２年秋季大会
Sep. 2012

Hydrodyanmic instabilities and vortex streets in superfluids
Hiroki Saito
Invited oral presentation, English, IUTAM Symposium "Understanding common aspects of extreme events in fluids", IUTAM, Dublin, International conference
Jul. 2012

2成分BECにおける回転対称性を破るレイリー・テイラー不安定性
門倉強; 相生智彦; 佐々木一樹; 岸本哲夫; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,日本物理学会第６７回年次大会
Mar. 2012

2成分BECにおけるプラトー・レイリー不安定性
佐々木一樹; 鈴木直也; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,日本物理学会第６７回年次大会
Mar. 2012

Hydrodynamic instabilities in gaseous Bose-Einstein condensates
斎藤弘樹
Invited oral presentation, Japanese, 量子凝縮系におけるdefectsおよびtopology, 物性研短期研究会
Jan. 2012

レーザー光を用いたボース凝縮体における量子渦対の生成と制御
相生智彦; 門倉強; 岸本哲夫; 斎藤弘樹
Oral presentation, Japanese, レーザー学会,第３２回年次大会
Jan. 2012

２成分BECにおける回転位相整合性のブロッキングとダイナミクスの観測に向けて
岸本哲夫; 稲田寛之; 三浦拓朗; 下平崇之; 斎藤弘樹
Oral presentation, Japanese, レーザー学会,第３２回年次大会
Jan. 2012

超流動体における量子渦対の生成と制御
相生智彦; 門倉強; 岸本哲夫; 斎藤弘樹
Public symposium, Japanese, 電通大農工大合同シンポジウム, 電通大、農工大
Dec. 2011

2成分BECにおける泡の運動
佐々木一樹; 鈴木直也; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,２０１１年秋季大会
Sep. 2011

様々なポテンシャルによる量子渦対の生成と制御
相生智彦; 門倉強; 岸本哲夫; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,２０１１年秋季大会
Sep. 2011

2成分BECにおけるケルビン・ヘルムホルツ不安定性と対向流不安定性のクロスオーバー
鈴木直也; 竹内宏光; 笠松健一; 坪田誠; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,第６６回年次大会
Mar. 2011

リング型トラップにおける二成分BECの混合性と回転
下平崇之; 岸本哲夫; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,第６６回年次大会
Mar. 2011

ボース凝縮体における流体不安定性
斎藤弘樹
Invited oral presentation, Japanese, 量子凝縮系の非線形・非平衡現象, 理化学研究所
Jan. 2011

Various instabilities in Bose-Einstein condensates
Hiroki Saito
Invited oral presentation, English, Model equations in Bose-Einstein Condensation and Related topics, 日本学術振興会日仏共同研究事業SAKURA
Dec. 2010

ボース・アインシュタイン凝縮体におけるカルマン渦列
佐々木一樹; 鈴木直也; 斎藤弘樹
Oral presentation, Japanese, 農工大電通大合同シンポジウム
Dec. 2010

２成分BECにおける回転位相整合性のブロッキングとダイナミクス
三浦拓郎; 稲田寛之; 下平崇之; 斎藤弘樹; 岸本哲夫
Oral presentation, Japanese, 農工大電通大合同シンポジウム
Dec. 2010

2成分BECにおける回転位相整合性のブロッキングとダイナミクス
稲田寛之; 三浦拓朗; 下平孝之; 斎藤弘樹; 岸本哲夫
Oral presentation, Japanese, 量子エレクトロニクス研究会
Dec. 2010

ＢＥＣにおけるカルマン渦列
佐々木一樹; 鈴木直也; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,２０１０年秋季大会
Sep. 2010

Ferrofluidity in dipolar Bose-Einstein condensates
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
Public symposium, English, International Symposium on Physics of New Quantum Phases in Superclean Materials, Yokohama
Mar. 2010

Interface instabilities in two-component Bose-Einstein condensates
Naoya Suzuki; Kazuki Sasaki; Hiroki Saito
Public symposium, English, International Symposium on Physics of New Quantum Phases in Superclean Materials, Yokohama
Mar. 2010

２成分ＢＥＣの界面におけるレイリー・テイラー不安定性
佐々木一樹; 鈴木直也; 赤松大輔; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,日本物理学会第６５回年次大会
Mar. 2010

磁気双極子相互作用によるＢＥＣの磁化ダイナミクス
星翔一; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,日本物理学会第６５回年次大会
Mar. 2010

２成分ボース・アインシュタイン凝縮体における界面不安定性
鈴木直也; 佐々木一樹; 斎藤弘樹
Public symposium, Japanese, 電通大農工大第６回合同シンポジウム, 電通大、農工大, 東京
Dec. 2009

原子気体ＢＥＣにおける磁性流体力学
斎藤弘樹
Keynote oral presentation, Japanese, 日本物理学会, Domestic conference
Sep. 2009

２成分ＢＥＣにおけるケルビン・ヘルムホルツ不安定性
鈴木直也; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会
Sep. 2009

スピノールＢＥＣにおける動的カシミール効果
斎藤弘樹; 日向裕幸
Oral presentation, Japanese, 日本物理学会,日本物理学会６４回年次大会
2009

Interface instabilities in two-component Bose-Einstein condensates
鈴木直也; 佐々木一樹; 斎藤弘樹
Public symposium, Japanese, スーパークリーン物質で実現する新しい量子相の物理 A03,A04合同研究会, 箱根
2009

ダイポールＢＥＣにおける磁区パターン形成
川口由紀; 斎藤弘樹; 上田正仁
Oral presentation, Japanese, 日本物理学会,日本物理学会第６４回年次大会
2009

Ferrofluidity in dipolar Bose-Einstein condensates
斎藤弘樹
Oral presentation, Japanese, 特定領域研究,スーパークリーン物質で実現する新しい量子相の物理A03,A04合同研究会
2009

Topological defect formation in spinor and dipolar Bose-Einstein condensates
Hiroki Saito
Invited oral presentation, English, The 8th Asian International Seminar on Atomic and Molecular Physics, Perth, Australia, International conference
2008

Bose-Einstein condensates of atomic gases: recent topics
Hiroki Saito
Invited oral presentation, English, オイラー方程式の数理, Kyoto University
2008

Kibble-Zurek mechanism in magnetization of a spinor Bose-Einstein condensate
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
Public symposium, English, The 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, Hitachi Laboratory, Saitama
2008

ラビ振動によるＢＥＣドロップレットの安定化
斎藤弘樹; R. G. Hulet; 上田正仁
Oral presentation, Japanese, 日本物理学会,日本物理学会秋季大会
2008

回転トラップ中のＢＥＣにおけるスピン渦の生成
千葉宏樹; 斎藤弘樹
Public symposium, Japanese, 電通大農工大第５回合同シンポジウム, 東京
2008

スピノールＢＥＣにおけるhalf-quantum vortexの磁化ダイナミクス
星翔一; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,日本物理学会秋季大会
2008

スピノールＢＥＣにおける1/2量子渦の磁化ダイナミクス
星翔一; 斎藤弘樹
Public symposium, Japanese, 電通大農工大第５回合同シンポジウム, 東京
2008

Kibble-Zurek mechanism in a spinor Bose-Einstein condensate
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
Public symposium, English, International Symposium on Coherent Optical Science, UEC, Tokyo, International conference
2007

境界条件を課さない動的カシミール効果
斎藤弘樹; 日向裕幸
Invited oral presentation, Japanese, 静的および動的カシミール効果, 立命館大学
2007

Kibble-Zurek mechanism in magnetization of a spinor Bose-Einstein condensate
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
Public symposium, English, International Symposium on Physics of New Quantum Phase in Superclean Materials, 岐阜
2007

Kibble-Zurek mechanism in a spinor Bose-Einstein condensate
Hiroki Saito; Yuki Kawaguchi; Masahito Ueda
Public symposium, English, International Symposium on Coherent Optical Science, UEC, Tokyo
2007

フィードバック制御によるＢＥＣドロップレットの安定化
斎藤弘樹; 上田正仁
Oral presentation, Japanese, 日本物理学会,日本物理学会２００７春季大会
2007

スピノールＢＥＣの自発磁化過程
斎藤弘樹; 川口由紀; 上田正仁
Oral presentation, Japanese, 日本物理学会,日本物理学会６２回年次大会
2007

スピノールＢＥＣのダイナミクスにおける量子揺らぎの効果
千葉宏樹; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,日本物理学会６２回年次大会
2007

スピノールＢＥＣのダイナミクスにおける量子揺らぎの効果
千葉宏樹; 斎藤弘樹
Oral presentation, Japanese, 日本物理学会,日本物理学会６２回年次大会, 東京
2007

磁場中のスピノルＢＥＣにおけるダイポール相互作用
川口由紀; 斎藤弘樹; 上田正仁
Oral presentation, Japanese, 日本物理学会,日本物理学会第６２回年次大会
2007

ダイポールＢＥＣの基底状態における自発循環
川口由紀; 斎藤弘樹; 上田正仁
Oral presentation, Japanese, 日本物理学会,日本物理学会２００７年春季大会
2007

Kibble-Zurek mechanism in magnetization of a spinor BEC
斎藤弘樹; 川口由紀; 上田正仁
Oral presentation, Japanese, 特定領域研究,スーパークリーン物質で実現する新しい量子相の物理A03,A04合同研究会
2007

Symmetry breaking in scalar, spinor, and rotating Bose-Einstein condensates
Hiroki Saito
Invited oral presentation, English, 18th International IUPAP Conference on Few-Body Problems in Physics, IUPAP, Santos, Brazil, International conference
2006

スピン２ＢＥＣのダイナミクスから磁性相を決定する方法
斎藤弘樹; 上田正仁
Oral presentation, Japanese, 日本物理学会,日本物理学会６１回年次大会
2006

スピノールＢＥＣにおける自発的渦形成
斎藤弘樹; 川口由紀; 上田正仁
Oral presentation, Japanese, 日本物理学会,日本物理学会２００６年秋季大会
2006

ダイポールＢＥＣにおけるアインシュタイン・ドハース効果
川口由紀; 斎藤弘樹; 上田正仁
Oral presentation, Japanese, 日本物理学会,日本物理学会２００６年秋季大会
2006

電磁気学および演習
Apr. 2024 - Present
The University of Electro-Communications

上級コンピュータ演習
Apr. 2020 - Present
電気通信大学

基礎電磁気学および演習
Apr. 2017 - Present
The University of Electro-Communications

量子力学第一
Apr. 2012 - Present
電気通信大学

凝縮体量子工学特論
Apr. 2006 - Present
電気通信大学

量子力学
Apr. 2011 - Mar. 2024
The University of Electro-Communications

上級コンピュータ演習
The University of Electro-Communications

K課程輪講
The University of Electro-Communications

K課程輪講
電気通信大学

量子力学
電気通信大学

UECパスポートセミナー
The University of Electro-Communications

UECパスポートセミナー
電気通信大学

電磁気学および演習
The University of Electro-Communications

電磁気学および演習
電気通信大学

量子力学
The University of Electro-Communications

凝縮体量子工学特論
The University of Electro-Communications

基礎電磁気学および演習
電気通信大学

大学院技術英語
The University of Electro-Communications

基礎電磁気学および演習
The University of Electro-Communications

凝縮体量子工学特論
The University of Electro-Communications

凝縮体量子工学特論
電気通信大学

大学院技術英語
The University of Electro-Communications

大学院技術英語
電気通信大学

コンピュータ演習
The University of Electro-Communications

コンピュータ演習
電気通信大学

基盤理工学専攻基礎
The University of Electro-Communications

基盤理工学専攻基礎
電気通信大学

量子力学第一
The University of Electro-Communications

量子力学第一
The University of Electro-Communications

量子力学第一
電気通信大学

Mar. 1996 - Present
日本物理学会

深層ニューラルネットワークを駆使した冷却原子系における量子多体計算手法の開拓
2020 - 2022

磁性超流体における自己束縛した量子小滴
01 Apr. 2017 - 31 Mar. 2020

光格子変調による原子波束の選択的量子操作
2017 - 2019

協同現象を利用した振動子集団の制御理論
2016 - 2018

ポラリトン超流動体における量子散逸構造
2014 - 2016

Study on superfluidity of atomic gases with internal degrees of freedom.
UEDA Masahito; HIRANO Takuya; SAITO Hiroki; KUWAMOTO Takeshi; TOJO Satoshi; KAWAGUCHI Yuki; TOJO Satoshi; KAWAGUCHI Yuki
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research on Priority Areas, We studies superfluid properties of Bose-Einstein condensates (BECs) with internal degrees of freedom. We have numerically demonstrated that by changing an external magnetic field spin vortices are spontaneously generated. This provides an atomic-gas demonstration of the Kibble-Zurek mechanism. We have also demonstrated that exotic topological excitations such as knots and non-Abelian vortices can be created in spinor BECs., 17071005
2005 - 2009

Theoretical study on the Quantum Statistical Aspects of BEC
UEDA Masahito; ADACHI Satoshi; MACHIDA Kazushige; OHMI Tetsuo; SAITO Hiroki
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research on Priority Areas, The A4 group consisted of theoreticians working on the physics of BEC. (1) Ueda's group studied on the physics of BEC under attractive interaction. The state of the attractive BEC is at best a metastable state and eventually collapses. They studied the mechanism of the BEC collapsing and found that a BEC near the critical temperature grows macroscopic quantum tunneling, and then the BEC collapses. The found also the quantization of circulation that was guaranteed in a repulsive BEC was only partially satisfied in an attractive BEC. The quantization of circulation is know as a signature of superfluidity. The breakdown of the quantization in an attractive BEC adds new insight on the fundamental properties of BEC. They studied also the dynamics of BEC when the interaction is switched from repulsive to attractive. Their findings are (i) when a large BEC is switched from repulsive to attractive interaction, various nonlinear pattern (shell structure, layered structure,....) is expected to appear. (ii) They studied the dynamics of vortex generated when the interaction is repulsive. They found various dynamical instabilities that was a function of the interaction strength. The instabilities cause fracture of the vortex, and the vortex collapses. (iii) They showed in an attractive BEC two-dimensional bright is stabilized if the sign and amplitude of the interaction potential is modulated. Ohmi and Machida studied on me phase separation of multi-state BEC, dynamics of the phase transition, a new method of generating vortices, and on the stability of vortices., 11216204
1999 - 2002

Journal of the Physical Society of Japan 編集委員
Peer review etc, Others, 01 Apr. 2018 - Present