Welcome to Journal of Beijing Institute of Technology
Volume 15Issue 2
.
Turn off MathJax
Article Contents
SHAO Bin, ZHANG Li-li, ZOU Jian. Two Qubits Entanglement Dynamics in1D Heisenberg Chain with Intrinsic Decoherence[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2006, 15(2): 239-241.
Citation: SHAO Bin, ZHANG Li-li, ZOU Jian. Two Qubits Entanglement Dynamics in1D Heisenberg Chain with Intrinsic Decoherence[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2006, 15(2): 239-241.

Two Qubits Entanglement Dynamics in1D Heisenberg Chain with Intrinsic Decoherence

Funds:Sponsored bythe National Natural Science Foundation of China(10374007)
  • Received Date:2004-07-06
  • To reveal how the decoherence modifies the time evolution of the entanglement of quantum system, the intrinsic decoherence approach and the entanglement of formation are used, and the time evolution of entanglement for two-qubit 1D quantum Heisenberg model in an external uniform magnetic field is derived. It is shown that the external magnetic field can strengthen the effects of the intrinsic decoherence on the entanglement of the system.
  • loading
  • [1]
    Shor P W. Scheme for reducing decoher ence in quantumcomputer memory [J]. Phys Rev A, 1995, 52: 2493-2496.
    [2]
    Bennett C H, Brassar d G, Cr peau C, et al. Teleport ingan unknown quantum state v ia dual classical and Einstein Podolsky Rosen channels [J]. Phys Rev Lett, 1993, 70:1895-1899.
    [3]
    Bennett C H, Wiesner S J. Communication via one andtwo particle operators on Einstein Podolsky Rosen states[J]. Phys Rev Lett, 1992, 69: 2881- 2884.
    [4]
    Eker t A K. Quantum cr yptogr aphy based on Bell? stheo rem [J]. Phys Rev Lett, 1991, 67: 661-663.
    [5]
    Murao M, Jonathan D, Plenio M B, et al. Quantumtelecloning and multiparticle entanglement [J]. Phys RevA, 1999, 59: 156-161.
    [6]
    Bennett C H, DiVincenzo D P, Smolin J A, et al.Mixed state entang lement and quantum er ror corr ection[J]. Phys Rev A, 1996, 54: 3824- 3851.
    [7]
    Vedral V, Plenio M B, Rippin M A, et al. Quantify ingentanglement [J]. Phys Rev Lett, 1997, 78: 2275-2279.
    [8]
    Arnesen M C, Bose S, Vedral V. Natur al thermal andmagnetic entanglement in 1D Heisenberg model [EB/OL]. http: xxx. itp-ac-cn/ PS-cache/ quant-ph/ pdf/0009/ 0009060-pdf, 2000-09-06/ 2004-03-15.
    [9]
    Milburn G J. Intrinsic decoherence in quantum mechanics[J]. Phys Rev A, 1991, 44: 5401-5406.
    [10]
    Moya Cessa H, Buzek V, Kim M S, et al. Intr insic de coherence in the atom field interaction [J]. Phys RevA, 1993, 48: 3900-3905.
    [11]
    Woofers W K. Entang lement of formation of an arbi-trary state of two qubits [J]. Phys Rev Let t, 1998,80: 2245-2248.
  • 加载中

Catalog

    通讯作者:陈斌, bchen63@163.com
    • 1.

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (171) PDF downloads(0) Cited by()
    Proportional views
    Related

    /

      Return
      Return
        Baidu
        map