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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Berry phase in a two-atom Jaynes-Cummings model with Kerr medium
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Berry phase in a two-atom Jaynes-Cummings model with Kerr medium

机译：Kerr介质的两原子Jaynes-Cummings模型中的Berry相

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摘要

The Jaynes-Cummings model (JCM) is an very important model for describing interaction between quantized electromagnetic fields and atoms in cavity quantum electrodynamics (QED). This model is generalized in many different directions since it predicts many novel quantum effects that can be verified by modern physics experimental technologies. In this paper, the Berry phase and entropy of the ground state for arbitrary photon number n of a two-atom Jaynes-Cummings model with Kerr-like medium are investigated. It is found that there is some correspondence between their images, especially the existence of a curve in the Delta-epsilon plane along which the energy, Berry phase and entropy all reach their special values. So it is available for detecting entanglement by applying Berry phase.
机译：Jaynes-Cummings模型（JCM）是一个非常重要的模型，用于描述腔量子电动力学（QED）中的量化电磁场与原子之间的相互作用。由于该模型预测了许多可以被现代物理实验技术验证的新型量子效应，因此它在许多不同的方向上得到了概括。本文研究了具有Kerr类介质的双原子Jaynes-Cummings模型的任意光子数n的Berry相和基态的熵。发现它们的图像之间存在某些对应关系，尤其是在Delta-ε平面中存在一条曲线，沿着该曲线，能量，Berry相和熵都达到其特殊值。因此，可通过应用Berry相位来检测纠缠。

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