Josephson junction of two-species Bose–Einstein condensates in a high-finesse optical cavity

doi:10.1088/1674-1056/19/11/117402

中国物理B ›› 2010, Vol. 19 ›› Issue (11): 117402-117501.doi: 10.1088/1674-1056/19/11/117402

Josephson junction of two-species Bose–Einstein condensates in a high-finesse optical cavity

王彬¹, 吕纯海¹, 谭文婷¹, 谭磊²

(1)Institute of Theoretical Physics, Lanzhou University, Lanzhou 730070, China; (2)Institute of Theoretical Physics, Lanzhou University, Lanzhou 730070, China; Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University, Lanzhou 730000, China

收稿日期:2009-12-21 修回日期:2010-05-30 出版日期:2010-11-15 发布日期:2010-11-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10704031), the National Science Foundation for Fostering Talents in Basic Research of the National Natural Science Foundation of China (Grant No. J0630313), the Fundamental Research Fund for Physics and Mathematics of Lanzhou University (Grant No. Lzu05001), and the Natural Science Foundation of Gansu Province, China (Grant No. 3ZS061-A25-035).

Josephson junction of two-species Bose–Einstein condensates in a high-finesse optical cavity

Wang Bin(王彬)^a), Tan Lei(谭磊)^a)b)^†, Lü Chun-Hai(吕纯海)^a), and Tan Wen-Ting(谭文婷)^a)

^a Institute of Theoretical Physics, Lanzhou University, Lanzhou 730070, China; ^b Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University, Lanzhou 730000, China

Received:2009-12-21 Revised:2010-05-30 Online:2010-11-15 Published:2010-11-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10704031), the National Science Foundation for Fostering Talents in Basic Research of the National Natural Science Foundation of China (Grant No. J0630313), the Fundamental Research Fund for Physics and Mathematics of Lanzhou University (Grant No. Lzu05001), and the Natural Science Foundation of Gansu Province, China (Grant No. 3ZS061-A25-035).

摘要/Abstract

摘要： The mean-field dynamics of undistinguishable two-species Bose Josephson junction coupled to a single mode high-finesse optical cavity is investigated. From the Hamiltonian, the phase portrait and the stationary points are given. It is shown that the role of the interspecies interaction equals the intraspecies interaction under suitable conditions. As the interspecies interaction increases, the trapped atoms will start tunneling between the two wells unnaturally for some special cases.

Abstract: The mean-field dynamics of undistinguishable two-species Bose Josephson junction coupled to a single mode high-finesse optical cavity is investigated. From the Hamiltonian, the phase portrait and the stationary points are given. It is shown that the role of the interspecies interaction equals the intraspecies interaction under suitable conditions. As the interspecies interaction increases, the trapped atoms will start tunneling between the two wells unnaturally for some special cases.

Key words: Josephson effect, cavity, Bose–Einstein condensate

中图分类号: (Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)

03.75.Lm

42.50.Pq (Cavity quantum electrodynamics; micromasers)

王彬, 谭磊, 吕纯海, 谭文婷. Josephson junction of two-species Bose–Einstein condensates in a high-finesse optical cavity[J]. 中国物理B, 2010, 19(11): 117402-117501.

Wang Bin(王彬), Tan Lei(谭磊), Lü Chun-Hai(吕纯海), and Tan Wen-Ting(谭文婷). Josephson junction of two-species Bose–Einstein condensates in a high-finesse optical cavity[J]. Chin. Phys. B, 2010, 19(11): 117402-117501.

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Josephson junction of two-species Bose–Einstein condensates in a high-finesse optical cavity

Josephson junction of two-species Bose–Einstein condensates in a high-finesse optical cavity

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