Berry Phase in a Two-atom Jaynes-Cummings Model with Kerr Medium
Abstract
he 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 direction 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 of a two-atom Jaynes-Cummings model with Kerr like medium are investigated. It is found that there are some correspondence between their images, especially the existence of a curve in the 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.
Keywords
Cite
@article{arxiv.0811.1821,
title = {Berry Phase in a Two-atom Jaynes-Cummings Model with Kerr Medium},
author = {Shen-Ping Bu and Guo-Feng Zhang and Jia Liu and Zi-Yu Chen},
journal= {arXiv preprint arXiv:0811.1821},
year = {2009}
}
Comments
accepted by physica scripta