Entangled quantum heat engine based on two-qubit Heisenberg XY model

被引：0
作者：
何济洲
何弦
郑洁
机构：
[1] DepartmentofPhysics,NanchangUniversity
来源：
Chinese Physics B | 2012年 / 21卷 / 05期
关键词：
isotropic Heisenberg XY model; thermal entanglement; quantum heat engine; performance characteristics;
D O I：
暂无
中图分类号：
O413 [量子论];
学科分类号：
070201 ;
摘要：
Based on a two-qubit isotropic Heisenberg XY model under a constant external magnetic field,we construct a four-level entangled quantum heat engine(QHE).The expressions for the heat transferred,the work,and the efficiency are derived.Moreover,the influence of the entanglement on the thermodynamic quantities is investigated analytically and numerically.Several interesting features of the variations of the heat transferred,the work,and the efficiency with the concurrences of the thermal entanglement of two different thermal equilibrium states in zero and nonzero magnetic fields are obtained.
引用
收藏
页码：51 / 56
页数：6
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