Quantum theory of a Bose-Einstein condensate out of equilibrium

被引:4
作者
Bhattacherjee, AB
Ranjan, V
ManMohan
机构
[1] Univ Delhi, ARSD Coll, Dept Phys, New Delhi 110021, India
[2] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India
关键词
Bose-Einstein condensate; non-equilibrium; Rabi oscillations;
D O I
10.1016/j.optcom.2005.01.048
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We consider the interaction between a single-mode quantized perturbing external field and a Bose-Einstein condensate (BEC) out of equilibrium. The usual Rabi type oscillations between the ground and the excited state of the coherent topological modes are observed with a Rabi frequency modified by the two-body atomic interactions. Taking into account the granular structure of the external perturbing field reveals the well know phenomena of collapse and revival of the Rabi oscillations. In particular, we find that atomic interactions reduce the Rabi frequency and also affect the collapse and revival sequence. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:587 / 593
页数:7
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