Thermalization and localization of an oscillating Bose-Einstein condensate in a disordered trap

Che Hsiu Hsueh; Russell Ong; Jing Fu Tseng; Makoto Tsubota; Wen Chin Wu

doi:10.1103/PhysRevA.98.063613

Thermalization and localization of an oscillating Bose-Einstein condensate in a disordered trap

Che Hsiu Hsueh, Russell Ong, Jing Fu Tseng, Makoto Tsubota, Wen Chin Wu

Department of Physics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We numerically simulate an oscillating Bose-Einstein condensate in a disordered trap [Phys. Rev. A 82, 033603 (2010)PLRAAN1050-294710.1103/PhysRevA.82.033603] and the results are in good agreement with the experiment. It shows that the disorder acts as a medium, which results in a relaxation from nonequilibrium to equilibrium, i.e., thermalization. An algebraic localization is realized when the system approaches the equilibrium, and if the system falls into the regime when the healing length of the condensate exceeds the correlation length of the disorder, exponential Anderson localization is to be observed.

Original language	English
Article number	063613
Journal	Physical Review A
Volume	98
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.98.063613
Publication status	Published - 2018 Dec 10

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.98.063613

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title = "Thermalization and localization of an oscillating Bose-Einstein condensate in a disordered trap",

abstract = "We numerically simulate an oscillating Bose-Einstein condensate in a disordered trap [Phys. Rev. A 82, 033603 (2010)PLRAAN1050-294710.1103/PhysRevA.82.033603] and the results are in good agreement with the experiment. It shows that the disorder acts as a medium, which results in a relaxation from nonequilibrium to equilibrium, i.e., thermalization. An algebraic localization is realized when the system approaches the equilibrium, and if the system falls into the regime when the healing length of the condensate exceeds the correlation length of the disorder, exponential Anderson localization is to be observed.",

author = "Hsueh, {Che Hsiu} and Russell Ong and Tseng, {Jing Fu} and Makoto Tsubota and Wu, {Wen Chin}",

note = "Funding Information: We are grateful to R. Hulet for many useful comments. Financial support from MOST, Taiwan (Grant No. MOST 105-2112-M-003-005), JSPS KAKENHI (Grant No. 17K05548), MEXT KAKENHI/Fluctuation and Structure (Grant No.16H00807), and NCTS of Taiwan is acknowledged. Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

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doi = "10.1103/PhysRevA.98.063613",

language = "English",

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AU - Hsueh, Che Hsiu

AU - Ong, Russell

AU - Tseng, Jing Fu

AU - Tsubota, Makoto

AU - Wu, Wen Chin

N1 - Funding Information: We are grateful to R. Hulet for many useful comments. Financial support from MOST, Taiwan (Grant No. MOST 105-2112-M-003-005), JSPS KAKENHI (Grant No. 17K05548), MEXT KAKENHI/Fluctuation and Structure (Grant No.16H00807), and NCTS of Taiwan is acknowledged. Publisher Copyright: © 2018 American Physical Society.

PY - 2018/12/10

Y1 - 2018/12/10

N2 - We numerically simulate an oscillating Bose-Einstein condensate in a disordered trap [Phys. Rev. A 82, 033603 (2010)PLRAAN1050-294710.1103/PhysRevA.82.033603] and the results are in good agreement with the experiment. It shows that the disorder acts as a medium, which results in a relaxation from nonequilibrium to equilibrium, i.e., thermalization. An algebraic localization is realized when the system approaches the equilibrium, and if the system falls into the regime when the healing length of the condensate exceeds the correlation length of the disorder, exponential Anderson localization is to be observed.

AB - We numerically simulate an oscillating Bose-Einstein condensate in a disordered trap [Phys. Rev. A 82, 033603 (2010)PLRAAN1050-294710.1103/PhysRevA.82.033603] and the results are in good agreement with the experiment. It shows that the disorder acts as a medium, which results in a relaxation from nonequilibrium to equilibrium, i.e., thermalization. An algebraic localization is realized when the system approaches the equilibrium, and if the system falls into the regime when the healing length of the condensate exceeds the correlation length of the disorder, exponential Anderson localization is to be observed.

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Thermalization and localization of an oscillating Bose-Einstein condensate in a disordered trap

Abstract

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