中国物理B ›› 2012, Vol. 21 ›› Issue (10): 103701-103401.doi: 10.1088/1674-1056/21/10/103701

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Atom-loss-induced quantum optical bi-stability switch

吴宝俊, 崔傅成   

  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2012-04-05 修回日期:2012-04-28 出版日期:2012-09-01 发布日期:2012-09-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10934010 and 60978019).

Atom-loss-induced quantum optical bi-stability switch

Wu Bao-Jun (吴宝俊), Cui Fu-Cheng (崔傅成)   

  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2012-04-05 Revised:2012-04-28 Online:2012-09-01 Published:2012-09-01
  • Contact: Wu Bao-Jun E-mail:dabaoski@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10934010 and 60978019).

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摘要： We investigate the nonlinear dynamics of a system composed of a cigar-shaped Bose-Einstein condensate and an optical cavity with the two sides coupled dispersively. By adopting discrete-mode approximation for the condensate, taking atom loss as a necessary part of the model to analyze the evolution of the system, while using trial and error method to find out steady states of the system as a reference, numerical simulation demonstrates that with a constant pump, atom loss will trigger a quantum optical bi-stability switch, which predicts a new interesting phenomenon for experiments to verify.

关键词: atom loss, discrete-mode approximation, optical bi-stability switch

Abstract: We investigate the nonlinear dynamics of a system composed of a cigar-shaped Bose-Einstein condensate and an optical cavity with the two sides coupled dispersively. By adopting discrete-mode approximation for the condensate, taking atom loss as a necessary part of the model to analyze the evolution of the system, while using trial and error method to find out steady states of the system as a reference, numerical simulation demonstrates that with a constant pump, atom loss will trigger a quantum optical bi-stability switch, which predicts a new interesting phenomenon for experiments to verify.

Key words: atom loss, discrete-mode approximation, optical bi-stability switch

中图分类号:  (Atoms in optical lattices)

  • 37.10.Jk
37.10.Vz (Mechanical effects of light on atoms, molecules, and ions) 42.50.Pq (Cavity quantum electrodynamics; micromasers) 42.65.Pc (Optical bistability, multistability, and switching, including local field effects)