Generation of steady four-atom decoherence-free states via quantum-jump-based feedback  

作　　者：吴奇成 计新 

机构地区：[1]Department of Physics,College of Science,Yanbian University

出　　处：《Chinese Physics B》2013年第10期130-134,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11064016 and 61068001)

摘　　要：A scheme is presented tor generating steady tour-atom decoherence-tree states via tour atoms with the Raman level configuration interacting with a single-mode vacuum cavity field by using quantum-jump-based feedback. The scheme meets the condition of a strongly dissipative cavity easily and has a simplified feedback control. Although the spontaneous emission still plays a negative role in the proposed system, we can improve the feedback control to reduce its effect.A scheme is presented tor generating steady tour-atom decoherence-tree states via tour atoms with the Raman level configuration interacting with a single-mode vacuum cavity field by using quantum-jump-based feedback. The scheme meets the condition of a strongly dissipative cavity easily and has a simplified feedback control. Although the spontaneous emission still plays a negative role in the proposed system, we can improve the feedback control to reduce its effect.

关 键 词：Raman three-level atom large detuning four-atom decoherence-free state quantum-jump-basedfeedback 

分 类 号：O431.2[机械工程—光学工程]