Relaxation, thermalization, and Markovian dynamics of two spins coupled to a spin bath

被引：18

作者：

De Raedt, H. ^{[1
]}

Jin, F. ^{[2
]}

Katsnelson, M. I. ^{[3
]}

Michielsen, K. ^{[2
,4
]}

机构：

[1] Univ Groningen, Zernike Inst Adv Mat, Nijenborgh 4, NL-9747AG Groningen, Netherlands

[2] Forschungszentrum Julich, Inst Adv Simulat, Julich Supercomp Ctr, D-52425 Julich, Germany

[3] Radboud Univ Nijmegen, Inst Mol & Mat, Heyendaalseweg 135, NL-6525AJ Nijmegen, Netherlands

[4] Rhein Westfal TH Aachen, D-52056 Aachen, Germany

来源：

PHYSICAL REVIEW E | 2017年 / 96卷 / 05期

基金：

欧洲研究理事会;

关键词：

LINEAR-RESPONSE; QUANTUM; SYSTEMS;

D O I：

10.1103/PhysRevE.96.053306

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

It is shown that by fitting a Markovian quantum master equation to the numerical solution of the time-dependent Schrodinger equation of a system of two spin-1/2 particles interacting with a bath of up to 34 spin-1/2 particles, the former can describe the dynamics of the two-spin system rather well. The fitting procedure that yields this Markovian quantum master equation accounts for all non-Markovian effects in as much the general structure of this equation allows and yields a description that is incompatible with the Lindblad equation.

引用

页数：17

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