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arXiv 2102.02235quant-phcond-mat.quant-gas
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Dicke模型动力学phase diagram的经典和量子探针表征

Characterizing the dynamical phase diagram of the Dicke model via classical and quantum probes

R. J. Lewis-Swan, S. R. Muleady, D. Barberena, J. J. Bollinger, A. M. Rey

摘要:

我们从理论上研究了迪克模型在经典和量子极限下的动力学相图,使用大的,实验相关的系统尺寸。我们的分析阐明,该模型具有动力学的临界点,不同于以前研究的激发态平衡过渡。此外,我们的数值计算表明,平均场的动力学特征在精确的量子动力学仍然有效,但我们也发现,在量子效应占主导地位的动态相位和混沌签名的制度可以坚持在纯粹的量子度量,如纠缠和相关。我们的预测可以验证在当前的量子模拟器的迪克模型,包括阵列的捕获离子。

英文摘要:

We theoretically study the dynamical phase diagram of the Dicke model in both classical and quantum limits using large, experimentally relevant system sizes. Our analysis elucidates that the model features dynamical critical points that are distinct from previously investigated excited-state equilibrium transitions. Moreover, our numerical calculations demonstrate that mean-field features of the dynamics remain valid in the exact quantum dynamics, but we also find that in regimes where quantum effects dominate signatures of the dynamical phases and chaos can persist in purely quantum metrics such as entanglement and correlations. Our predictions can be verified in current quantum simulators of the Dicke model including arrays of trapped ions.

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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