Phase Transition and Superfluid of Photons and Photon Pairs in a Two-Dimensional Optical Microcavity  

作　　者：张建军 袁建辉 张俊佩 成泽 

机构地区：[1]School of Physics,Huazhong University of Science and Technology

出　　处：《Communications in Theoretical Physics》2012年第11期672-680,共9页理论物理通讯（英文版）

摘　　要：We analyze the ground-state properties and the excitation spectrum of Bose-Einstein condensates of photons and PPs in a two-dimensional optical microcavity. First, using the variational method, we discuss the ground-state phase transition of the two-component system. We also investigate the energy gap between the ground state and the first excited state. Moreover, by investigating the excitation spectrum, we also illustrate how the superfluid behavior of photons and PPs can be associated with the phase transition of the system.

关 键 词：Bose-Einstein condensation photon pair SUPERFLUID 

分 类 号：O437[机械工程—光学工程]