Bose-Einstein Condensation in Strong-Coupling Quark Color Superconductor near Flavor SU(3) Limit  

作　　者：张小兵 任春福 张一 

机构地区：[1]School of Physics,Nankai University [2]Department of Physics,Shanghai Normal University

出　　处：《Communications in Theoretical Physics》2011年第6期1065-1072,共8页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No.10875058

摘　　要：Near the flavor SU（3） limit, we propose an analytical description for color-flavor-locked-type Bardeen- Cooper-Schrieffer （BCS） phase in the Nambu Jona-Lasinio （NJL） model. The diquark behaviors in light-flavor and strange-flavor-involved channels and Bose-Einstein condensation （BEC） of bound diquark states are studied. When the attractive interaction between quarks is strong enough, a BCS-BEC crossover is predicted in the environment with color-flavor-locked pairing pattern. The resulting Bose-Einstein condensed phase is found to be an intergrade phase before the emergence of the previous-predicted BEC phase in two-flavor quark superconductor.

关 键 词：color superconductor color-flavor-locked phase BCS-BEC crossover 

分 类 号：O469[理学—凝聚态物理]