First-Order Quantum Phase Transition for Dicke Model Induced by Atom-Atom Interaction

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【作者】赵秀琴，刘妮，梁九卿
【刊名】理论物理通讯(英文版)
【作者单位】Institute of Theoretical Physics, Shanxi University；Department of Physics, Taiyuan Normal University
【年份】2017
【卷号】第67卷
【期号】第5期
【页码】511-519
【ISSN】0253-6102
【关键词】first-order quantum phase transition atom-atom interaction spin-coherent-state variational method
【摘要】 In this article, we use the spin coherent state transformation and the ground state variational method to theoretically calculate the ground function. In order to consider the influence of the atom-atom interaction on the extended Dicke model’s groun...
【基金】国家自然科学基金
【文献类型】期刊