Generation of three-atom singlet state in a bimodal cavity via quantum Zeno dynamics

Generation of three-atom singlet state in a bimodal cavity via quantum Zeno dynamics
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通过量子芝诺动力学在双峰腔中生成三原子单重态

DOI:
10.1007/s11128-012-0382-y
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发表时间:
2013
影响因子:
2.5
通讯作者:
Song, He-Shan
Song, He-Shan
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Shi, Zhi-Cheng;Xia, Yan;Song, Jie;Song, He-Shan

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基于量子Zeno动力学和大失谐条件,提出了一种在双模腔中制备三原子单重态的有效方案。通过数值计算,讨论了腔场衰减和原子自发辐射引起的退相干效应的影响。该方案的优点是:由于在整个演化过程中没有激发腔场,并且在大失谐条件下,原子的初始输入态没有纠缠,保真度对腔衰减和原子自发辐射不敏感。
We propose an efficient scheme for generation of three-atom singlet state in a bimodal cavity based on quantum Zeno dynamics and the large detuning condition. The influence of decoherence induced by cavity decay and atomic spontaneous emission is also discussed by numerical calculation. The advantages of the scheme are that the initial input states of atoms are not entangled and the fidelity is insensitive to cavity decay and atomic spontaneous emission due to no exciting the cavity fields during the whole evolution and the large detuning condition.
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