Spin-boson thermal rectifier

被引：335
|
作者：
Segal, D [1 ]
Nitzan, A [1 ]
机构：
[1] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 03期
关键词：
D O I：
10.1103/PhysRevLett.94.034301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Rectification of heat transfer in nanodevices can be realized by combining the system inherent anharmonicity with structural asymmetry. We analyze this phenomenon within the simplest anharmonic system-a spin-boson nanojunction model. We consider two variants of the model that yield, for the first time, analytical solutions: a linear separable model in which the heat reservoirs contribute additively, and a nonseparable model suitable for a stronger system-bath interaction. Both models show asymmetric (rectifying) heat conduction when the couplings to the heat reservoirs are different.
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页数：4
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