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

doi:10.1088/1674-1056/24/12/120303

中国物理B ›› 2015, Vol. 24 ›› Issue (12): 120303-120303.doi: 10.1088/1674-1056/24/12/120303

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

Mazhar Ali

Department of Electrical Engineering, Faculty of Engineering, Islamic University in Madinah, Madinah 107, Kingdom of Saudi Arabia

收稿日期:2015-06-10 修回日期:2015-08-17 出版日期:2015-12-05 发布日期:2015-12-05
通讯作者: Mazhar Ali E-mail:mazharaliawan@yahoo.com

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

Mazhar Ali

Department of Electrical Engineering, Faculty of Engineering, Islamic University in Madinah, Madinah 107, Kingdom of Saudi Arabia

Received:2015-06-10 Revised:2015-08-17 Online:2015-12-05 Published:2015-12-05
Contact: Mazhar Ali E-mail:mazharaliawan@yahoo.com

摘要/Abstract

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.

关键词: genuine negativity, decoherence, random states

Abstract: 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.

Key words: genuine negativity, decoherence, random states

中图分类号: (Decoherence; open systems; quantum statistical methods)

03.65.Yz

03.65.Ud (Entanglement and quantum nonlocality) 03.67.Mn (Entanglement measures, witnesses, and other characterizations)

Mazhar Ali. Decoherence of genuine multipartite entanglement for local non-Markovian-Lorentzian reservoirs[J]. 中国物理B, 2015, 24(12): 120303-120303.

Mazhar Ali. Decoherence of genuine multipartite entanglement for local non-Markovian-Lorentzian reservoirs[J]. Chin. Phys. B, 2015, 24(12): 120303-120303.

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

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

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