Thermal entanglement in spin-dimer V4+ with a strong magnetic field

Guo Feng Zhang; Jiu Qing Liang; Qi Wei Yan

doi:10.1088/0256-307X/20/4/303

Thermal entanglement in spin-dimer V⁴⁺ with a strong magnetic field

Guo Feng Zhang^*
, Jiu Qing Liang
, Qi Wei Yan

^*Corresponding author for this work

Shanxi University
CAS - Institute of Physics

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We study the entanglement in Heisenberg dimer single molecular magnets V⁴⁺ with a strong magnetic field by means of the measure of entanglement called "concurrence" and find that thermal entanglement exists for both the ferromagnetic (FM) and antiferromagnetic (AFM) cases. In the FM case, entanglement vanishes for anisotropic parameter λ = 0 while in the AFM case, entanglement exits in the whole region of anisotropic parameter 0 ≤ λ ≤ 1. Entanglement variations with anisotropic parameter λ, magnetic field B and temperature T are evaluated. We and a critical magnetic field at which the concurrence changes sharply from zero to maximum entanglement.

Original language	English
Pages (from-to)	452-455
Number of pages	4
Journal	Chinese Physics Letters
Volume	20
Issue number	4
DOIs	https://doi.org/10.1088/0256-307X/20/4/303
State	Published - Apr 2003
Externally published	Yes

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title = "Thermal entanglement in spin-dimer V4+ with a strong magnetic field",

abstract = "We study the entanglement in Heisenberg dimer single molecular magnets V4+ with a strong magnetic field by means of the measure of entanglement called {"}concurrence{"} and find that thermal entanglement exists for both the ferromagnetic (FM) and antiferromagnetic (AFM) cases. In the FM case, entanglement vanishes for anisotropic parameter λ = 0 while in the AFM case, entanglement exits in the whole region of anisotropic parameter 0 ≤ λ ≤ 1. Entanglement variations with anisotropic parameter λ, magnetic field B and temperature T are evaluated. We and a critical magnetic field at which the concurrence changes sharply from zero to maximum entanglement.",

author = "Zhang, \{Guo Feng\} and Liang, \{Jiu Qing\} and Yan, \{Qi Wei\}",

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T1 - Thermal entanglement in spin-dimer V4+ with a strong magnetic field

AU - Zhang, Guo Feng

AU - Liang, Jiu Qing

AU - Yan, Qi Wei

PY - 2003/4

Y1 - 2003/4

N2 - We study the entanglement in Heisenberg dimer single molecular magnets V4+ with a strong magnetic field by means of the measure of entanglement called "concurrence" and find that thermal entanglement exists for both the ferromagnetic (FM) and antiferromagnetic (AFM) cases. In the FM case, entanglement vanishes for anisotropic parameter λ = 0 while in the AFM case, entanglement exits in the whole region of anisotropic parameter 0 ≤ λ ≤ 1. Entanglement variations with anisotropic parameter λ, magnetic field B and temperature T are evaluated. We and a critical magnetic field at which the concurrence changes sharply from zero to maximum entanglement.

AB - We study the entanglement in Heisenberg dimer single molecular magnets V4+ with a strong magnetic field by means of the measure of entanglement called "concurrence" and find that thermal entanglement exists for both the ferromagnetic (FM) and antiferromagnetic (AFM) cases. In the FM case, entanglement vanishes for anisotropic parameter λ = 0 while in the AFM case, entanglement exits in the whole region of anisotropic parameter 0 ≤ λ ≤ 1. Entanglement variations with anisotropic parameter λ, magnetic field B and temperature T are evaluated. We and a critical magnetic field at which the concurrence changes sharply from zero to maximum entanglement.

UR - https://www.scopus.com/pages/publications/0038404943

U2 - 10.1088/0256-307X/20/4/303

DO - 10.1088/0256-307X/20/4/303

M3 - 文章

AN - SCOPUS:0038404943

SN - 0256-307X

VL - 20

SP - 452

EP - 455

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 4

ER -

Thermal entanglement in spin-dimer V⁴⁺ with a strong magnetic field

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