旋转
放松(心理学)
联轴节(管道)
干扰(通信)
动力学(音乐)
图解推理
物理
主方程
统计物理学
时间演化
自旋(空气动力学)
机制(生物学)
凝聚态物理
量子力学
材料科学
计算机科学
热力学
频道(广播)
心理学
量子
社会心理学
计算机网络
冶金
程序设计语言
声学
作者
Philipp Stegmann,Jürgen König,Björn Sothmann
出处
期刊:Physical review
日期:2020-02-10
卷期号:101 (7)
被引量:10
标识
DOI:10.1103/physrevb.101.075411
摘要
We consider the relaxation dynamics of two spins coupled to a common bosonic bath. The time evolution is simulated by a generalized master equation derived within a real-time diagrammatic approach. Interference effects due to the coherent coupling to the common bath give rise to characteristic features in the relaxation dynamics after a quench or during a periodic external driving. In particular, we find that the long-time behavior during periodic driving depends sensitively on the initial state as well as on system parameters such as coupling asymmetries. When coupled to more than a single reservoir, the interference effects can lead to a cooling mechanism for one of the bosonic reservoirs.
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