The Influences of Quantum Coherence on the Positive Work and the Efficiency of Quantum Heat Engine with Working Substance of Two-Qubit Heisenberg XXX Model

被引：0
作者：
Hu-Ping Peng
Mao-Fa Fang
Min Yu
Hong-Mei Zou
机构：
[1] Hunan Normal University,Department of Physics, Key Laboratory of Low
来源：
International Journal of Theoretical Physics | 2018年 / 57卷
关键词：
Quantum heat engine; Quantum coherence; Heisenberg XXX model;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We study the influences of quantum coherence on the positive work and the efficiency of quantum heat engine (QHE) based on working substance of two-qubit Heisenberg model under a constant external magnetic field. By using analytical and numerical solution, we give the relation expressions for both the positive work and the efficiency with quantum coherence, and in detail discuss the effects of the quantum coherence on the positive work and the efficiency of QHE in the absence or presence of external magnetic field, respectively.
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页码：1872 / 1880
页数：8
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