Bose-Einstein Condensation in a Two-Dimensional System with Sixty Bosons

作     者：Bao Cheng-Guang 鲍诚光

作者机构：Department of PhysicsZhongshan UniversityGuangzhou 510275 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2000年第17卷第2期

页      面：123-125页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No.19875084.pput ry.mma 

主　　题：temperature structure state. 

摘      要：A 60-boson system confined on a sphere has been qualitatively studied based on symmetry considerations. The low-lying spectrum is dominated by the ground rotation band based on the fullerene structure. In this band all the L=1 to L=5 states are found to be prohibited by symmetry. Therefore, there is a large gap lying between the ground state and the first excited state. The magnitude of this gap, which is associated with the critical temperature of Bose-Einstein condensation, has been evaluated. It is found that, the smaller the radius of the sphere of confinement, the higher the critical temperature.