Quantum discord dynamics of two qubits in single-mode cavities

Quantum discord dynamics of two qubits in single-mode cavities
复制标题

单模腔中两个量子位的量子不一致动力学

DOI:
10.1088/1674-1056/22/4/040304
复制
发表时间:
2012-02
期刊:
影响因子:
1.7
通讯作者:
Chen Qing-Hu
Chen Qing-Hu
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Wang Chen;Chen Qing-Hu

文献摘要

参考文献

被引文献

相似文献

讨论了两个独立的单模腔和一个普通单模腔中两个完全相同的量子比特的量子不协调动力学。对于具有相关自旋的初始Bell态,虽然可能发生纠缠猝死,但量子不和谐只在独立腔中的离散时刻消失,而在公共腔中永远不会消失。有趣的是,量子不协调和纠缠在公共腔中表现出相反的行为,而不是在独立的腔中。对于具有反关联自旋的初始Bell态,对于独立腔和公共腔,量子不协调和纠缠的行为是相同的。结果表明,失谐总是使量子失谐趋于稳定。
The dynamics of quantum discord for two identical qubits in two independent single-mode cavities and a common single-mode cavity are discussed. For the initial Bell state with correlated spins, while the entanglement sudden death can occur, the quantum discord vanishes only at discrete moments in the independent cavities and never vanishes in the common cavity. Interestingly, quantum discord and entanglement show opposite behavior in the common cavity, unlike in the independent cavities. For the initial Bell state with anti-correlated spins, quantum discord and entanglement behave in the same way for both independent cavities and a common cavity. It is found that the detunings always stabilize the quantum discord.
DOI: 10.1088/0256-307x/24/2/011
发表时间: 2007-02
影响因子: 3.5
作者:
Tan Xiao-Hui;Fang Xi-ming;Wang Guo-You
通讯作者: Tan Xiao-Hui;Fang Xi-ming;Wang Guo-You
DOI: 10.1088/0953-4075/39/15/s09
发表时间: 2006-02
期刊: Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子: --
作者:
Muhammed Yonac;Ting Yu;J. Eberly
通讯作者: Muhammed Yonac;Ting Yu;J. Eberly
DOI: 10.1088/0953-4075/44/12/125501
发表时间: 2011-05
期刊: Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子: --
作者:
Ferdi Altintas;R. Eryigit
通讯作者: Ferdi Altintas;R. Eryigit
DOI: 10.1103/revmodphys.84.1655
发表时间: 2012-11-26
影响因子: 44.1
作者:
Modi, Kavan;Brodutch, Aharon;Vedral, Vlatko
通讯作者: Vedral, Vlatko
DOI: 10.1103/physrevlett.88.017901
发表时间: 2002-01-07
影响因子: 8.6
作者:
Ollivier, H;Zurek, WH
通讯作者: Zurek, WH