Teleportation and thermal entanglement in two-qubit Heisenberg XYZ spin chain with the Dzyaloshinski-Moriya interaction and the inhomogeneous magnetic field

This paper studies the average fidelity of teleportation and thermal entanglement for a two-qubit Heisenberg XYZ chain in the presence of both an inhomogeneous magnetic field and a Dzyaloshinski-Moriya interaction. It shows that for a fixed Dz, the increase of bz will broaden the critical temperatur...

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Bibliographic Details
Published inChinese physics B Vol. 19; no. 9; pp. 150 - 154
Main Author 高丹 赵振双 朱爱东 王洪福 邵晓强 张寿
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.09.2010
Subjects
Chains
Critical temperature
Entanglement
Magnetic fields
Optimization
Teleportation
不均匀磁场
海森堡自旋链
热纠缠态
相互作用
量子比特
隐形传输
非均匀磁场
Online AccessGet full text
ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/19/9/090313

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Summary:This paper studies the average fidelity of teleportation and thermal entanglement for a two-qubit Heisenberg XYZ chain in the presence of both an inhomogeneous magnetic field and a Dzyaloshinski-Moriya interaction. It shows that for a fixed Dz, the increase of bz will broaden the critical temperature at the cost of decreasing the thermal entanglement. And it can modulate the inhomogeneous magnetic field and the Dzyaloshinski-Moriya interaction for the average fidelity of teleportation to be optimal.
Bibliography:teleportation, thermal entanglement, Heisenberg XYZ spin chain
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ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/19/9/090313