随机边界对相对论气体玻色-爱因斯坦凝聚临界温度的影响  

Influence of Random Boundary on the Critical Temperature of Bose-Einstein Condensation in Relativistic Gases

作　　者：尹慧[1] 李海鸥 王哲 孔祥木[1] YIN Hui;LI Haiou;WANG Zhe;KONG Xiangmu(College of Physics and Engineering,Qu fu Normal University,Qu fu 273165,China;Yan tai Industry&Trade Technician College,Yan tai 264000,China)

机构地区：[1]曲阜师范大学物理工程学院,山东曲阜273165 [2]烟台工贸技师学院,山东烟台264000

出　　处：《低温物理学报》2019年第4期297-300,共4页Low Temperature Physical Letters

基　　金：国家自然科学基金(11675090)资助的课题。

摘　　要：研究了随机边界对立方箱中相对论气体玻色-爱因斯坦凝聚临界温度的影响.在均匀分布、双模分布和高斯分布情况下,分别计算了临界温度与固定箱中的气体临界温度的比值,发现随机边界降低了系统的临界温度.相对于极端相对论情况,非相对论极限下的临界温度更低.In this paper, the influence of the random boundary on critical temperature of the Bose-Einstein condensation of relativistic gas in a cubic box is studied. Assume that the boundary of the box satisfies the uniform distribution, double mode distribution and Gaussian distribution, respectively, the ratio of the critical temperature to that of the gas in the fixed box is calculated. It is found that the random boundary reduces the critical temperature of the system. The critical temperature in the nonrelativistic limit is lower than that in the extreme relativistic case.

关 键 词：玻色-爱因斯坦凝聚 临界温度 随机箱 相对论玻色气体 

分 类 号：O469[理学—凝聚态物理]