Thermal entanglement of spins in the Heisenberg model at low temperatures

被引：36

作者：

Asoudeh, M ^{[1
]}

Karimipour, V ^{[1
]}

机构：

[1] Sharif Univ Technol, Dept Phys, Tehran, Iran

来源：

PHYSICAL REVIEW A | 2004年 / 70卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.70.052307

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We calculate the entanglement between two spins in the ferromagnetic Heisenberg chain at low temperatures, and show that when only the ground state and the one-particle states are populated, the entanglement profile is a Gaussian with a characteristic length depending on the temperature and the coupling between spins. The magnetic field affects only the amplitude of the profile and not its characteristic length.

引用

页码：052307 / 1

页数：5

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