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Spinor Bose–Einstein condensates

- Y. Kawaguchi, Masahito Ueda
- Physics
- 13 January 2010

Abstract An overview of the physics of spinor and dipolar Bose–Einstein condensates (BECs) is given. Mean-field ground states, Bogoliubov spectra, and many-body ground and excited states of spinor… Expand

Topological Phases of Non-Hermitian Systems

- Z. Gong, Y. Ashida, K. Kawabata, K. Takasan, S. Higashikawa, Masahito Ueda
- PhysicsPhysical Review X
- 22 February 2018

Recent experimental advances in controlling dissipation have brought about unprecedented flexibility in engineering non-Hermitian Hamiltonians in open classical and quantum systems. A particular… Expand

Spinor Bose gases: Symmetries, magnetism, and quantum dynamics

- D. Stamper-Kurn, Masahito Ueda
- Physics
- 26 July 2013

Spinor Bose gases form a family of quantum fluids manifesting both magnetic order and superfluidity. This article reviews experimental and theoretical progress in understanding the static and dynamic… Expand

Symmetry and Topology in Non-Hermitian Physics

- K. Kawabata, K. Shiozaki, Masahito Ueda, Masatoshi Sato
- Physics, MathematicsPhysical Review X
- 21 December 2018

We develop a complete theory of symmetry and topology in non-Hermitian physics. We demonstrate that non-Hermiticity ramifies the celebrated Altland-Zirnbauer symmetry classification for insulators… Expand

Experimental demonstration of information-to-energy conversion and validation of the generalized Jarzynski equality

- Shoichi Toyabe, T. Sagawa, Masahito Ueda, E. Muneyuki, M. Sano
- Physics
- 1 December 2010

Feedback mechanisms such as the ‘demon’ in Maxwell’s well-known thought experiment can, in principle, enable the transformation of information into energy, without violating the second law of… Expand

Minimal energy cost for thermodynamic information processing: measurement and information erasure.

- T. Sagawa, Masahito Ueda
- Mathematics, MedicinePhysical review letters
- 24 September 2008

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Vortex lattice formation in a rotating Bose-Einstein condensate

- M. Tsubota, K. Kasamatsu, Masahito Ueda
- Physics
- 27 April 2001

We study the dynamics of vortex lattice formation of a rotating trapped Bose-Einstein condensate by numerically solving the two-dimensional Gross-Pitaevskii equation, and find that the condensate… Expand

Einstein-Podolsky-Rosen correlation in a gravitational field

- H. Terashima, Masahito Ueda
- Physics, Mathematics
- 17 July 2003

For quantum communication in a gravitational field, the properties of the Einstein-Podolsky-Rosen (EPR) correlation are studied within the framework of general relativity. Acceleration and gravity… Expand

Generalized Jarzynski equality under nonequilibrium feedback control.

- T. Sagawa, Masahito Ueda
- Physics, MedicinePhysical review letters
- 28 July 2009

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