Quantum Entanglement in Spin Dimers: Effects of a Magnetic Field and Heterogeneous g-Factors

被引：6

作者：

Adamyan, Z. A. ^{[1
,2
]}

Muradyan, S. A. ^{[1
]}

Ohanyan, V. R. ^{[1
]}

机构：

[1] Yerevan State Univ, Yerevan, Armenia

[2] CANDLE Synchrotron Res Inst, Yerevan, Armenia

来源：

JOURNAL OF CONTEMPORARY PHYSICS-ARMENIAN ACADEMY OF SCIENCES | 2020年 / 55卷 / 04期

关键词：

quantum entanglement; phase transitions; spin; magnetic field; Landé multipliers; STATE;

D O I：

10.3103/S1068337220040027

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This work considers the spin-1/2 Heisenberg dimer, the mixed spin-(1/2,1) Heisenberg dimer and their quantum entanglement, particularly, the dependence of the entanglement on the system characteristics and the external magnetic field. The quantum entanglement in this work is determined using two different methods, namely 'Negativity' and 'Concurrence'. The dependence of the corresponding quantities on spins Lande g-factors, system anisotropy constants and exchange constant is discussed.

引用

页码：292 / 298

页数：7

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