Bath-induced correlations in an infinite-dimensional Hilbert space

被引：0
作者：
Marco Nizama
Manuel O. Cáceres
机构：
[1] Departamento de Física,
[2] Universidad Nacional del Comahue,undefined
[3] Centro Atómico Bariloche,undefined
[4] CNEA,undefined
[5] Instituto Balseiro and CONICET,undefined
来源：
The European Physical Journal B | 2017年 / 90卷
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Quantum correlations between two free spinless dissipative distinguishable particles (interacting with a thermal bath) are studied analytically using the quantum master equation and tools of quantum information. Bath-induced coherence and correlations in an infinite-dimensional Hilbert space are shown. We show that for temperature T> 0 the time-evolution of the reduced density matrix cannot be written as the direct product of two independent particles. We have found a time-scale that characterizes the time when the bath-induced coherence is maximum before being wiped out by dissipation (purity, relative entropy, spatial dispersion, and mirror correlations are studied). The Wigner function associated to the Wannier lattice (where the dissipative quantum walks move) is studied as an indirect measure of the induced correlations among particles. We have supported the quantum character of the correlations by analyzing the geometric quantum discord.
引用
收藏
相关论文
共 68 条
[1]  
Allahverdayn A.E.(2013)undefined Phys. Rep. 525 1-undefined
[2]  
Kolobov M.I.(2000)undefined Phys. Rev. Lett. 85 3789-undefined
[3]  
Fabre C.(1981)undefined Phys. Rev. D 23 1693-undefined
[4]  
Caves C.M.(2006)undefined Math. Struct. Comput. Sci. 17 1169-undefined
[5]  
Kendon V.(2002)undefined Phys. Rev. Lett. 89 277901-undefined
[6]  
Braun D.(2007)undefined Phys. Rev. A 76 044101-undefined
[7]  
Ann K.(2006)undefined Phys. Rev. Lett. 97 140403-undefined
[8]  
Jaeger G.(2003)undefined Phys. Rev. B 68 165322-undefined
[9]  
Yu T.(2009)undefined Phys. Rev. A 80 022337-undefined
[10]  
Eberly J.H.(2002)undefined Phys. Rev. B 66 193306-undefined
1234567