Effective dynamics for two-atom entanglement and quantum information processing by coupled cavity QED systems

Effective dynamics for two-atom entanglement and quantum information processing by coupled cavity QED systems
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耦合腔 QED 系统的双原子纠缠和量子信息处理的有效动力学

DOI:
10.1140/epjd/e2010-09413-0
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发表时间:
2011-02
影响因子:
1.8
通讯作者:
Zheng, S. B.
Zheng, S. B.
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Yang, Z. B.;Wu, H. Z.;Xia, Y.;Zheng, S. B.

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提出了一种利用分布在两个耦合腔中的两型原子实现确定性纠缠的方案。我们在色散原子-光场相互作用中研究了这样一个系统,其中系统的动力学通过原子激发态和光子态在腔(加上光纤)中的虚布居来运作。我们验证了动力学的有效性,并进一步研究了自发辐射和光子泄漏对退相干的影响。我们还应用动力学实现量子态转移和量子相位门。
We propose a scheme for deterministic generation of entanglement embodied by two-type atoms distributed in two coupled cavities. We study such a system in the dispersive atom-field interactions, where the dynamics of the system operates through the virtual population of both the atomic excited states and the photonic states in the cavities (plus the fiber). We verify the validity of the dynamics, and moreover, study the influences of the decoherence due to the spontaneous emission and photon leakage. We also apply the dynamics for realizing quantum state transfer and quantum phase gates.
通过色散玻色子介质的相干量子效应
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