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

• GENERAL • 上一篇    下一篇

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

Mazhar Ali   

  1. 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   

  1. 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: 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)