Dissipative preparation of a steady three-dimensional entangled state via quantum-jump-based feedback  

作　　者：陈丽 王洪福 张寿 

机构地区：[1]Center for the Condensed-Matter Science and Technology, Department of Physics, Harbin Institute of Technology [2]Department of Physics, College of Science, Yanbian University

出　　处：《Chinese Physics B》2014年第3期104-108,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.61068001 and 11264042);the Postdoctoral Science Foundation of China(Grant No.2012M520612);the Talent Program of Yanbian University of China(Grant No.950010001)

摘　　要：A robust and scalable scheme to generate a steady three-dimensional entangled state for a V-type atom and a A- type atom trapped in a strongly dissipative bimodal cavity is proposed by direct feedback control based on quantum-jump detection. The robustness of this scheme reflects in the insensitivity to detection inefficiencies and the strong ability against the parameter fluctuations in the feedback, driving, and coupling strengths. The influence of atomic spontaneous emission can be suppressed by using the local feedback control. The scalability is ensured that N-dimensional entangled states of two atoms can be deterministically generated.A robust and scalable scheme to generate a steady three-dimensional entangled state for a V-type atom and a A- type atom trapped in a strongly dissipative bimodal cavity is proposed by direct feedback control based on quantum-jump detection. The robustness of this scheme reflects in the insensitivity to detection inefficiencies and the strong ability against the parameter fluctuations in the feedback, driving, and coupling strengths. The influence of atomic spontaneous emission can be suppressed by using the local feedback control. The scalability is ensured that N-dimensional entangled states of two atoms can be deterministically generated.

关 键 词：three-dimensional entangled state quantum jump feedback control 

分 类 号：O413.1[理学—理论物理] TP273[理学—物理]