Purifying entanglement of noisy two-qubit states via entanglement swapping

被引：17
|
作者：
Song, Wei [1 ]
Yang, Ming [2 ]
Cao, Zhuo-Liang [1 ]
机构：
[1] Hefei Normal Univ, Sch Elect & Informat Engn, Hefei 230601, Peoples R China
[2] Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Peoples R China
来源：
PHYSICAL REVIEW A | 2014年 / 89卷 / 01期
基金：
中国国家自然科学基金;
关键词：
PURIFICATION;
D O I：
10.1103/PhysRevA.89.014303
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Two qubits in pure entangled states going through separate paths and interacting with their own individual environments will gradually lose their entanglement. Here we show that the entanglement change of a two-qubit state due to amplitude damping noises can be recovered by entanglement swapping. Some initial states can be asymptotically purified into maximally entangled states by iteratively using our protocol.
引用
收藏
页数：5
相关论文
共 50 条
  • [1] ENTANGLEMENT OF TWO-QUBIT NONORTHOGONAL STATES
    Berrada, K.
    Chafik, A.
    Eleuch, H.
    Hassouni, Y.
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2009, 23 (08): : 2021 - 2027
  • [2] Quantifying entanglement of two-qubit Werner states
    Artur Czerwinski
    CommunicationsinTheoreticalPhysics, 2021, 73 (08) : 77 - 83
  • [3] Quantifying entanglement of two-qubit Werner states
    Czerwinski, Artur
    COMMUNICATIONS IN THEORETICAL PHYSICS, 2021, 73 (08)
  • [4] Entanglement optimizing mixtures of two-qubit states
    Shuddhodan, K. V.
    Ramkarthik, M. S.
    Lakshminarayan, A.
    JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2011, 44 (34)
  • [5] Three-qubit thermal entanglement via entanglement swapping on two-qubit Heisenberg XY chains -: art. no. 062302
    Kao, ZC
    Ng, J
    Yeo, Y
    PHYSICAL REVIEW A, 2005, 72 (06):
  • [6] Properties on the distant distribution of entanglement for arbitrary two-qubit pure states via noisy quantum channels
    王琼
    李际新
    曾浩生
    Chinese Physics B, 2009, 18 (04) : 1357 - 1361
  • [7] Properties on the distant distribution of entanglement for arbitrary two-qubit pure states via noisy quantum channels
    Wang Qiong
    Li Ji-Xin
    Zeng Hao-Sheng
    CHINESE PHYSICS B, 2009, 18 (04) : 1357 - 1361
  • [8] Sudden death time of two-qubit entanglement in a noisy environment
    Huang, Jie-Hui
    Zhu, Shi-Yao
    OPTICS COMMUNICATIONS, 2008, 281 (08) : 2156 - 2159
  • [9] Stochastic action for the entanglement of a noisy monitored two-qubit system
    Shea, Dominic
    Romito, Alessandro
    PHYSICAL REVIEW A, 2025, 111 (01)
  • [10] Purifying two-qubit entanglement in nonidentical decoherence by employing weak measurements
    Shi, Jia-Dong
    Xu, Shuai
    Ma, Wen-Chao
    Song, Xue-Ke
    Ye, Liu
    QUANTUM INFORMATION PROCESSING, 2015, 14 (04) : 1387 - 1397
12345