Thermal Entanglement Properties in Two Qubits One-Axis Spin Squeezing Model with an External Magnetic Field

被引：0
|
作者：
Saeed Haddadi
Ahmad Akhound
机构：
[1] Payame Noor University,Department of Physics
来源：
International Journal of Theoretical Physics | 2019年 / 58卷
关键词：
Spin squeezing model; Concurrence; Ground state; 03.67.Mn; 03.65.Ud;
D O I：
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学科分类号：
摘要：
In a recent article in this journal Guo-Hui (Int. J. Theor. Phys. 56, 600, 2017) has investigated the quantum correlation properties in the two qubits one-axis spin squeezing model with an external magnetic field by means of concurrence (C) and quantum discord (QD) criteria. We are to reveal numerically and analytically that in the limiting case T→ 0 (ground state) the sudden disappearance phenomenon (SDP) does not occur in the behavior of C and the values obtained for C are incorrect.
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页码：399 / 402
页数：3
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