user

Entanglement sudden death in band gaps

被引：0
|
作者：
Y. J. Zhang
Z. X. Man
Y. J. Xia
G. C. Guo
机构：
[1] Shandong Provincial Key Laboratory of Laser Polarization and Information Technology,Department of Physics, Qufu Normal University
[2] Key Laboratory of Quantum Information,Department of Physics, University of Science and technology of China
来源：
The European Physical Journal D | 2010年 / 58卷
关键词：
Entangle State; Entanglement Dynamic; Negative Weighting; Entanglement Sudden Death; Lorentzian Model;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Using the pseudomode method, we evaluate exactly time-dependent entanglement for two independent qubits, each coupled to a non-Markovian structured environment. Our results suggest a possible way to retard entanglement sudden death by modifying the qubit-pseudomode detuning and the spectrum of the reservoirs. Particularly, in environments structured by a model of a density-of-states gap which has two poles, entanglement trapping and prevention of entanglement sudden death occur in the weak-coupling regime.
引用
收藏
页码：397 / 401
页数：4
相关论文
共 50 条
  • [1] Entanglement sudden death in band gaps
    Zhang, Y. J.
    Man, Z. X.
    Xia, Y. J.
    Guo, G. C.
    EUROPEAN PHYSICAL JOURNAL D, 2010, 58 (03): : 397 - 401
  • [2] ENTANGLEMENT TRAPPING AND SUDDEN DEATH IN A COMMON BAND GAP
    Han, Feng
    Zhang, Ming-Hua
    INTERNATIONAL JOURNAL OF QUANTUM INFORMATION, 2011, 9 (06) : 1533 - 1541
  • [3] Sudden Death of Entanglement
    Yu, Ting
    Eberly, J. H.
    SCIENCE, 2009, 323 (5914) : 598 - 601
  • [4] Sudden death and sudden birth of entanglement
    Tanas, Ryszard
    QUANTUM DYNAMICS AND INFORMATION, 2011, : 179 - 198
  • [5] Sudden birth and sudden death of entanglement
    Ficek, Zbigniew
    Tanas, Ryszard
    JOURNAL OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING, 2010, 10 (3-6) : 265 - 289
  • [6] Tripartite entanglement witnesses and entanglement sudden death
    Weinstein, Yaakov S.
    PHYSICAL REVIEW A, 2009, 79 (01):
  • [7] Observation of the entanglement sudden death
    Instituto de Física, Universidade Federal do Rio de Janeiro, Cx. P. 68528, 21941-972 Rio de Janeiro, RJ, Brazil
    Opt.InfoBase Conf. Papers, 2008,
  • [8] The geometry of entanglement sudden death
    Terra Cunha, Marcelo O.
    NEW JOURNAL OF PHYSICS, 2007, 9
  • [9] Observation of the Entanglement Sudden Death
    Almeida, M. P.
    de Melo, F.
    Hor-Meyll, M.
    Salles, A.
    Walborn, S. P.
    Souto Ribeiro, P. H.
    Davidovich, L.
    2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE, VOLS 1-9, 2008, : 3141 - 3142
  • [10] UNIVERSALITY OF SUDDEN DEATH OF ENTANGLEMENT
    Fanchini, Felipe Fernandes
    Marques Furtado De Mendonca, Paulo Eduardo
    Napolitano, Reginald de Jesus
    QUANTUM INFORMATION & COMPUTATION, 2011, 11 (7-8) : 677 - 694
12345