由N-E-V分布及赝势法研究有弱相互作用的费米子气体  

On Investigation of Fermi Gases with Weak Interaction by N-E-V Distribution and the Method of Pseudo Potential

作　　者：李鹤龄[1] 马燕[1] 杨斌[1] 杨涛[1] 熊英[1] 

机构地区：[1]宁夏大学物理电气信息学院,银川750021

出　　处：《西南师范大学学报（自然科学版）》2013年第9期33-39,共7页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：宁夏大学自然科学基金资助项目(NR1244)

摘　　要：采用赝势法及完全开放系统的统计分布(N-E-V分布)求出了有弱相互作用的费米气体的热力学函数,计算结果对用赝势法及正则分布的计算的结果给出了一些修正;并由N-E-V分布计算了广延量的相对涨落,得出广延量的相对涨落正比于1,而不是其他分布的1/槡N.To introduce the method of Pseudo potential and the statistical distribution of completely open system （N-E-V distribution）, we, with the thermo-dynamical function of Fermi gases with weak interac tion, have discussed the revision for the calculation results with the method of Pseudo potential and the ca nonical distribution; we have calculated the relatively fluctuations of extensive quantities by the N-E-V dis tribution, and have found out the relatively fluctuations of extensive quantities are of order 1, rather than 1/√N.

关 键 词：N-E-V分布 赝势法 费米气体 热力学函数 相对涨落 

分 类 号：O414[理学—理论物理]