Tunneling of Boseben–Einstein condensate and interference effect in a harmonic trap with a Gaussian energy barrier

doi:10.1088/1674-1056/20/6/060308

中国物理B ›› 2011, Vol. 20 ›› Issue (6): 60308-060308.doi: 10.1088/1674-1056/20/6/060308

Tunneling of Boseben–Einstein condensate and interference effect in a harmonic trap with a Gaussian energy barrier

花巍, 李彬, 刘学深

Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China

收稿日期:2010-11-13 修回日期:2010-12-24 出版日期:2011-06-15 发布日期:2011-06-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10974068).

Tunneling of Boseben–Einstein condensate and interference effect in a harmonic trap with a Gaussian energy barrier

Hua Wei (花巍), Li Bin (李彬), Liu Xue-Shen (刘学深)

Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China

Received:2010-11-13 Revised:2010-12-24 Online:2011-06-15 Published:2011-06-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10974068).

摘要/Abstract

摘要： The tunneling effect of Bose-Einstein condensate (BEC) in a harmonic trap with a Gaussian energy barrier is studied in this paper. The initial condensate evolves into two separate moving condensates after the tunneling time under certain conditions. The interference pattern between the two moving condensates is given as a comparison and as a further demonstration of the existence of the global phase.

Abstract: The tunneling effect of Bose-Einstein condensate (BEC) in a harmonic trap with a Gaussian energy barrier is studied in this paper. The initial condensate evolves into two separate moving condensates after the tunneling time under certain conditions. The interference pattern between the two moving condensates is given as a comparison and as a further demonstration of the existence of the global phase.

Key words: Bose-Einstein condensate, tunneling effect, interference effect

中图分类号: (Other Bose-Einstein condensation phenomena)

03.75.Nt

05.30.Jp (Boson systems)

花巍, 李彬, 刘学深. Tunneling of Boseben–Einstein condensate and interference effect in a harmonic trap with a Gaussian energy barrier[J]. 中国物理B, 2011, 20(6): 60308-060308.

Hua Wei (花巍), Li Bin (李彬), Liu Xue-Shen (刘学深). Tunneling of Boseben–Einstein condensate and interference effect in a harmonic trap with a Gaussian energy barrier[J]. Chin. Phys. B, 2011, 20(6): 60308-060308.

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Tunneling of Boseben–Einstein condensate and interference effect in a harmonic trap with a Gaussian energy barrier

Tunneling of Boseben–Einstein condensate and interference effect in a harmonic trap with a Gaussian energy barrier

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