Dynamical control of population and entanglement for open Λ-type atoms by engineering the environment

作     者：Xiao-Lan Wang Yu-Kun Ren Hao-Sheng Zeng 王晓岚;任玉坤;曾浩生

作者机构：Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Educationand Department of PhysicsHunan Normal UniversityChangsha 410081China 

基　　金：supported by the National Natural Science Foundation of China(Grant No.11275064) the Specialized Research Fund for the Doctoral Program of Higher Education,China(Grant No.20124306110003) the Construct Program of the National Key Discipline,China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2019年第28卷第3期

页      码：97-102页

摘      要：The exactly analytical solution for the dynamics of the dissipative Λ-type atom in the zero-temperature Lorentzian environment is presented. On this basis, we study the evolution of the population and entanglement. We find that the stable populations on the two lower levels of the Λ-type atom can be effectively adjusted by the combination of the relative decay rate and the environmental spectral frequency. However, for the initial Werner-like state, the stable entanglement between the two Λ-type atoms has very little tunability. Furthermore, the stable entanglement for the bilateral environment case is larger than that of the unilateral environmental case. A nonintuitive relation between the stable entanglement and stable population is found.

主 题 词：open quantum systems population entanglement 

学科分类：07[理学] 070203[070203] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1088/1674-1056/28/3/030301

馆 藏 号：203517710...