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arXiv 1405.2665quant-ph
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量子相干性而非量子关联性反映了储层对系统工作能力的影响

Quantum coherence rather than quantum correlations reflect the effects of reservoir on the system's work capability

Hai Li, Jian Zou, Wen-Li Yu, Bao-Ming Xu, Jun-Gang Li, Bin Shao

摘要:

本文考虑了一个由一束全同二能级原子对(TLAPs)组成的非平衡态光腔模型。我们发现,多粒子非平衡库的相干性对腔的潜在作功能力起着核心作用。结果表明,无论TLAPs中是否存在量子关联(包括量子纠缠和量子不协调),TLAPs的相干性都会影响腔的工作能力。另外,与量子关联无关的相长干涉和相消干涉仅通过调节相对相位就能影响腔的工作性能。本文证明了库的相干性而不是量子关联性能有效地反映库对系统工作能力的影响。

英文摘要:

We consider a model of an optical cavity with a nonequilibrium reservoir consisting of a beam of identical two-level atom pairs (TLAPs) in the general X-state. We find that coherence of multiparticle nonequilibrium reservoir plays a central role on the potential work capability of cavity. We show that no matter whether there are quantum correlations in each TLAP (including quantum entanglement and quantum discord) or not the coherence of the TLAPs has an effect on the work capability of the cavity. Additionally, constructive and destructive interferences could be induced to influence the work capability of cavity only by adjusting the relative phase with which quantum correlations have nothing to do. In this paper, the coherence of reservoir rather than the quantum correlations effectively reflecting the effects of reservoir on the system's work capability is demonstrated clearly.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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