Decoherence-free quantum information in Markovian systems

被引：8
|
作者：
Patra, Manas K. [1 ]
Brooke, Peter G. [2 ,3 ]
机构：
[1] Univ York, Dept Comp Sci, York YO10 5DD, N Yorkshire, England
[2] Macquarie Univ, Ctr Quantum Comp Technol, Sydney, NSW 2109, Australia
[3] Macquarie Univ, Dept Phys, Sydney, NSW 2109, Australia
来源：
PHYSICAL REVIEW A | 2008年 / 78卷 / 01期
关键词：
D O I：
10.1103/PhysRevA.78.010308
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Decoherence in Markovian systems can result indirectly from the action of a system Hamiltonian which is usually fixed and unavoidable. Here, we show that in general in Markovian systems, because of the system Hamiltonian, quantum information decoheres. We give conditions for the system Hamiltonian that must be satisfied if coherence is to be preserved. Finally, we show how to construct robust subspaces for quantum-information processing.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Rapid Lyapunov control for decoherence-free subspaces of Markovian open quantum systems
    Chen, Mengxi
    Kuang, Sen
    Cong, Shuang
    [J]. JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS, 2017, 354 (01): : 439 - 455
  • [2] Immunizing quantum information against decoherence via decoherence-free environments
    Cetinbas, Murat
    Leach, Gary W.
    [J]. JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2011, 44 (13)
  • [3] Decoherence-free quantum information in the presence of dynamical evolution
    Brooke, Peter G.
    Cresser, James D.
    Patra, Manas K.
    [J]. PHYSICAL REVIEW A, 2008, 77 (06):
  • [4] Exact decoherence-free state of two distant quantum systems in a non-Markovian environment
    Chen, Chong
    Yang, Chun-Jie
    An, Jun-Hong
    [J]. PHYSICAL REVIEW A, 2016, 93 (06)
  • [5] Cavity quantum networks for quantum information processing in decoherence-free subspace
    Wei, Hua
    Deng, Zhi-jiao
    Yang, Wan-li
    Zhou, Fei
    [J]. FRONTIERS OF PHYSICS IN CHINA, 2009, 4 (01): : 21 - 37
  • [6] Cavity quantum networks for quantum information processing in decoherence-free subspace
    Hua Wei
    Zhi-jiao Deng
    Wan-li Yang
    Fei Zhou
    [J]. Frontiers of Physics in China, 2009, 4 : 21 - 37
  • [7] Decoherence-Free Linear Quantum Subsystems
    Yamamoto, Naoki
    [J]. IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 2014, 59 (07) : 1845 - 1857
  • [8] Decoherence-free quantum computation.
    Lidar, DA
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2000, 220 : U190 - U190
  • [9] Driving quantum systems into decoherence-free subspaces by Lyapunov control
    Yi, X. X.
    Huang, X. L.
    Wu, Chunfeng
    Oh, C. H.
    [J]. PHYSICAL REVIEW A, 2009, 80 (05):
  • [10] Quantum information processing in collective-rotating decoherence-free subspace
    Su, Shi-Lei
    Wang, Hong-Fu
    Zhang, Shou
    [J]. QUANTUM INFORMATION PROCESSING, 2015, 14 (06) : 1855 - 1867
12345