Stationary entanglement of two atoms in a common reservoir

被引:16
作者
Man ZhongXiao [1 ]
Su Fang [2 ]
Xia YunJie [1 ]
机构
[1] Qufu Normal Univ, Shandong Prov Key Lab Laser Polarizat & Informat, Dept Phys, Qufu 273165, Peoples R China
[2] Jining Univ, Dept Chem & Chem Engn, Qufu 273155, Peoples R China
来源
CHINESE SCIENCE BULLETIN | 2013年 / 58卷 / 20期
基金
中国国家自然科学基金;
关键词
quantum entanglement; quantum interference; common environment; QUANTUM DISCORD; SUDDEN-DEATH; ENVIRONMENT; DYNAMICS;
D O I
10.1007/s11434-013-5898-8
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
We study the dynamics of two entangled atoms interacting with a common structured reservoir. By means of the exact solution of atomic dynamics, we show a novel quantum interference controlled by the relative phase of initial entangled state of the atoms. The quantum interference has a great influence on trapped excited-state population and stationary entanglement of the atoms. In particular, we construct an explicit condition under which atomic stationary entanglement can grow over their initial value.
引用
收藏
页码:2423 / 2429
页数:7
相关论文
共 42 条
[1]   Two mode photon bunching effect as witness of quantum criticality in circuit QED [J].
Ai Qing ;
Wang YingDan ;
Long GuiLu ;
Sun ChangPu .
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2009, 52 (12) :1898-1905
[2]   Environment-induced sudden death of entanglement [J].
Almeida, M. P. ;
de Melo, F. ;
Hor-Meyll, M. ;
Salles, A. ;
Walborn, S. P. ;
Ribeiro, P. H. Souto ;
Davidovich, L. .
SCIENCE, 2007, 316 (5824) :579-582
[3]  
An N. B., 2010, PHYS REV A, V82, DOI DOI 10.1103/PHYSREVA.82.032316
[4]  
[Anonymous], 1974, QUANTUM STAT THEORIE
[5]   Non-Markovian effects on the dynamics of entanglement [J].
Bellomo, B. ;
Lo Franco, R. ;
Compagno, G. .
PHYSICAL REVIEW LETTERS, 2007, 99 (16)
[6]   Entanglement dynamics of two independent qubits in environments with and without memory [J].
Bellomo, B. ;
Lo Franco, R. ;
Compagno, G. .
PHYSICAL REVIEW A, 2008, 77 (03)
[7]   Entanglement trapping in structured environments [J].
Bellomo, Bruno ;
Lo Franco, Rosario ;
Maniscalco, Sabrina ;
Compagno, Giuseppe .
PHYSICAL REVIEW A, 2008, 78 (06)
[8]  
Breuer H.-P., 2007, The Theory of Open Quantum Systems
[9]   Entanglement dynamics of two independent Jaynes-Cummings atoms without the rotating-wave approximation [J].
Chen, Qing-Hu ;
Yang, Yuan ;
Liu, Tao ;
Wang, Ke-Lin .
PHYSICAL REVIEW A, 2010, 82 (05)
[10]  
Chuang I. N., 2000, Quantum Computation and Quantum Information