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arXiv quant-ph/0702078quant-phcond-mat.mes-hall
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原子纠缠度与光子可见度对杂化系统量子临界性的影响

Atomic Entanglement vs Photonic Visibility for Quantum Criticality of Hybrid System

M. X. Huo, Ying Li, Z. Song, C. P. Sun

摘要:

为了表征由耦合腔阵列和掺杂在每个腔中的二能级原子组成的混合系统的新的量子相变,我们研究了原子纠缠和光子可见性,并与总激发的量子涨落进行了比较.分析和数值模拟结果表明,在超流态下发生了类似于莫特绝缘体到超流态的量子临界现象。在此,相图中分别代表原子纠缠度、光子可见度和激发方差的等值线在原子共点的非解析轨迹附近是一致的。

英文摘要:

To characterize the novel quantum phase transition for a hybrid system consisting of an array of coupled cavities and two-level atoms doped in each cavity, we study the atomic entanglement and photonic visibility in comparison with the quantum fluctuation of total excitations. Analytical and numerical simulation results show the happen of quantum critical phenomenon similar to the Mott insulator to superfluid transition. Here, the contour lines respectively representing the atomic entanglement, photonic visibility and excitation variance in the phase diagram are consistent in the vicinity of the non-analytic locus of atomic concurrences.

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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