Decoherence of genuine multipartite entanglement for local non-Markovian-Lorentzian reservoirs

被引：7
|
作者：
Ali, Mazhar [1 ]
机构：
[1] Islamic Univ Madinah, Fac Engn, Dept Elect Engn, Madinah 107, Saudi Arabia
来源：
CHINESE PHYSICS B | 2015年 / 24卷 / 12期
关键词：
genuine negativity; decoherence; random states; SUDDEN-DEATH; DYNAMICS;
D O I：
10.1088/1674-1056/24/12/120303
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study decoherence effects on genuine multipartite entanglement for three and four qubits, spatially separated and subjected to local Lorentzian reservoirs. Employing recent techniques to compute genuine negativity for multipartite systems and an exact solvable model, we analyze the dynamics of genuine entanglement for different coupling bandwidths and detunings. We find that collapses and revivals can occur by varying these parameters for various multipartite quantum states.
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页数：7
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