Quantum coherence establishment of Bose-Einstein condensates induced by random system dissipation
文献类型：期刊论文
| 作者 | Tang, Rong-An1,2; Liu, Shujuan1; Xiong, Hongwei1; Xue, Ju-Kui2 |
| 刊名 | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
 |
| 出版日期 | 2012-05-28 |
| 卷号 | 45期号:10 |
| 英文摘要 | By using a weak imaginary random potential to simulate the random system dissipation and considering the quantum many-body effect, the role of random system dissipation in the quantum coherence establishment of Bose-Einstein condensates (BECs) is studied. It is found that even very weak random system dissipation may induce an obvious interference pattern between two initially independent BECs after the overlapping. Moreover, the random system dissipation has no effect on the spatial period of the interference fringes, which is identical to that observed in the current interference experiments. Under the assumption of weak dissipation, increasing the dissipation strength may accelerate the construction of the observable relative phase. Other behaviours of the interference are also investigated. The theoretical analysis and the numerical simulation show good consistency. This sort of interference has an observable effect, which significantly differs from other quantum interference mechanisms. The work may provide further theoretical basis for the future interference experiment of molecular BECs (Kohstall et al 2011 New J. Phys. 13 065027), considering the possible dissipation of the molecular BECs (e. g. the destruction of the weakly bound Feshbach molecules and the dissipation of the condensate fraction). |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Optics ; Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Optics ; Physics |
| 关键词[WOS] | INTERFERENCE ; PHASE ; MATTER ; ATOMS ; GAS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000304052100009 |
| 公开日期 | 2015-07-14 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/1549]  |
| 专题 | 武汉物理与数学研究所_理论与交叉研究部 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 2.NW Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Rong-An,Liu, Shujuan,Xiong, Hongwei,et al. Quantum coherence establishment of Bose-Einstein condensates induced by random system dissipation[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2012,45(10). |
| APA | Tang, Rong-An,Liu, Shujuan,Xiong, Hongwei,&Xue, Ju-Kui.(2012).Quantum coherence establishment of Bose-Einstein condensates induced by random system dissipation.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,45(10). |
| MLA | Tang, Rong-An,et al."Quantum coherence establishment of Bose-Einstein condensates induced by random system dissipation".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 45.10(2012). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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