Detection of genuine N -Qubit W state, GHZ state and Twin-Fock state via Quantum Fisher information
利用Quantum Fisher信息检测真实的N-Qubit W态、GHZ态和Twin-Fock态
作者: Yan LiPengfei Li
作者单位: 1Department of Physics, Taiyuan Normal University, Jinzhong, 030619, China
2Institute of Computational and Applied Physics, Taiyuan Normal University, Jinzhong, 030619, China
刊名: Physics Letters A, 2020, Vol.384 (20)
来源数据库: Elsevier Journal
DOI: 10.1016/j.physleta.2020.126413
关键词: Quantum Fisher informationW stateGHZ stateTwin-Fock stateGenuine multipartite entanglement
原始语种摘要: Abstract(#br)We study the entanglement detection of three classes of state in the white noise model: N -qubit W state, Greenberger-Horne-Zeilinger state and Twin-Fock state. Taking advantage of Quantum Fisher information, we first present how to witness M -separable W state ( M ≤ N ) in the ideal situation, and then derive the criteria for detecting genuine W state, Greenberger-Horne-Zeilinger state and Twin-Fock state in the noisy model. Meanwhile, the bounds for M -separable W state, k -partite entangled GHZ state and k -partite entangled Twin-Fock state are also investigated. The results show that with the increase of the number of particles, the requirement of visibility V for genuine multipartite entanglement becomes more and more stringent, while it is relaxed for partial...
全文获取路径: Elsevier  (合作)
分享到:
来源刊物:
影响因子:1.766 (2012)

×
关键词翻译
关键词翻译
  • 报告 扭结
  • state 状态
  • entanglement 扭结
  • information 扭结
  • genuine 本征的
  • separable 可分的
  • visibility 可见度
  • extremum 极值
  • situation 立场
  • bounds 界限
  • ideal 理想