Environmental correlations and Markovian to non-Markovian transitions in collisional models

被引：65

作者：

Bernardes, N. K. ^{[1
]}

Carvalho, A. R. R. ^{[2
]}

Monken, C. H. ^{[1
]}

Santos, M. F. ^{[1
]}

机构：

[1] Univ Fed Minas Gerais, Dept Fis, BR-30161970 Belo Horizonte, MG, Brazil

[2] Australian Natl Univ, Res Sch Phys & Engn, Dept Quantum Sci, Ctr Quantum Computat & Commun Technol, Canberra, ACT 0200, Australia

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

QUANTUM; PHOTON; MEMORY;

D O I：

10.1103/PhysRevA.90.032111

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the smallest set of requirements for inducing non-Markovian dynamics in a collisional model of open quantum systems. This is done by introducing correlations in the state of the environment and analyzing the divisibility of the quantum maps from consecutive time steps. Our model and results serve as a platform for the microscopic study of non-Markovian behavior as well as an example of a simple scenario of non-Markovianity with purely contractive maps, i.e., with no backflow of information between system and environment.

引用

页数：9

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