| 中心对称量子态的量子失协 |
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| 引用本文： | 吴连发. 中心对称量子态的量子失协[J]. 上饶师范学院学报, 2014, 0(3): 6-10 |
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| 作者姓名： | 吴连发 |
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| 作者单位： | 上饶师范学院,江西上饶334001 |
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| 基金项目： | 江西省教育厅项目的资助（GJJ09378） |
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| 摘 要： | 讨论了一类中心对称密度矩阵的量子失协,即满足在局域Hadamard门之下变换为X态的中心对称密度矩阵:HHρcHH=ρx,这里为Hadamard门变换。进一步得到了任意两量子比特中心对称态的量子失协的解析公式。并讨论了中心对称态的量子失协在几种重要物理系统中的计算和应用。
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| 关 键 词： | 中心对称量子态 量子失协 Χ态 |
Quantum Discord for Center Symmetry States |
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| WU Lian-fa. Quantum Discord for Center Symmetry States[J]. Journal of Shangrao Normal College, 2014, 0(3): 6-10 |
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| Authors: | WU Lian-fa |
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| Affiliation: | WU Lian-fa (Shangrao Normal University, Shangrao Jiangxi 334001, China) |
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| Abstract: | We discuss a class of center symmetry quantum state ＇ s quantum discord, a state transform to X state under local Hadamardtransformation HHρcH×H = ρx, We further obtain the anaylitic formula of quantum discord for two qubit center symmetry quantumstate, and it＇s application in different physical system is also discussed. |
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| Keywords: | Center symmetry quantum state quantum discord X state |
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