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.
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收藏
页数：17
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