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
  • [21] Optimal estimation of entanglement and discord in two-qubit states
    Salvatore Virzì
    Enrico Rebufello
    Alessio Avella
    Fabrizio Piacentini
    Marco Gramegna
    Ivano Ruo Berchera
    Ivo Pietro Degiovanni
    Marco Genovese
    Scientific Reports, 9
  • [22] Entanglement, phase correlation and dephasing of two-qubit states
    Ban, Masashi
    OPTICS COMMUNICATIONS, 2008, 281 (14) : 3943 - 3946
  • [23] Entanglement types for two-qubit states with real amplitudes
    Oscar Perdomo
    Vicente Leyton-Ortega
    Alejandro Perdomo-Ortiz
    Quantum Information Processing, 2021, 20
  • [24] Relative entropy of entanglement of two-qubit 'X' states
    Huang Jie-Hui
    Liu Nian-Hua
    Liu Jiang-Tao
    Yu Tian-Bao
    He Xian
    CHINESE PHYSICS B, 2010, 19 (11)
  • [25] Entanglement Dynamics of Two-Qubit System in Different Types of Noisy Channels
    SHAN Chuan-Jia
    Communications in Theoretical Physics, 2009, 51 (06) : 1013 - 1016
  • [26] Entanglement Dynamics of the Mixed Two-qubit System in Different Noisy Channels
    Ma, Jing
    Jiang, Li-Nan
    Yu, Si-Yuan
    Ran, Qi-Wen
    Tan, Li-Ying
    INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2014, 53 (11) : 3843 - 3855
  • [27] Entanglement Dynamics of Two-Qubit System in Different Types of Noisy Channels
    Shan Chuan-Jia
    Liu Ji-Bing
    Cheng Wei-Wen
    Liu Tang-Kun
    Huang Yan-Xia
    Li Hong
    COMMUNICATIONS IN THEORETICAL PHYSICS, 2009, 51 (06) : 1013 - 1016
  • [28] Entanglement Dynamics of the Mixed Two-qubit System in Different Noisy Channels
    Jing Ma
    Li-Nan Jiang
    Si-Yuan Yu
    Qi-Wen Ran
    Li-Ying Tan
    International Journal of Theoretical Physics, 2014, 53 : 3843 - 3855
  • [29] Two-qubit entanglement in an antiferromagnetic environment
    Yuan, XZ
    Zhu, KD
    Wu, ZJ
    EUROPEAN PHYSICAL JOURNAL D, 2005, 33 (01): : 129 - 132
  • [30] Entanglement capability of two-qubit operations
    Kraus, B
    Dür, W
    Vidal, G
    Cirac, JI
    Lewenstein, M
    Linden, N
    Popescu, S
    ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 2001, 56 (1-2): : 91 - 99
12345