物理学报Issue(19)：1-9,9.DOI:10.7498/aps.63.193601
单势阱粒子溢流模型中热力学量的涨落效应
Fluctuation effects of thermo dynamic variables in particle-spilling-from-well mo del with single p otential well
摘要
Abstract
Under ergodic condition, the analytic expressions for the fluctuations of temperature and particle number in the well of a system are obtained rigorously in particle-spilling-from-well model by means of integration approaches in phase space;the relationships among fluctuations of thermodynamic variables, the total particle numbers, and the well volume are emphasized. Results show that the less the total number of particles and the smaller the well’s volume, the more remarkable the thermodynamic fluctuations effect, and the more closely the thermodynamic fluctuations related to the particle spilling from the well. There is a one to one correspondence between particle spilling from the well and the occurrence of negative specific heat, and the huge thermodynamic fluctuations,as well as, the origin of this phenomenon can be understood by the apparent energy inverse partition.关键词
单势阱粒子溢流模型/涨落/表观能量逆均分/负比热Key words
particle-spilling-from-single potential well model/fluctuation/apparent energy inverse partition/negative specific heat引用本文复制引用
张学军,饶坚,邓杨保,蒋练军,田野..单势阱粒子溢流模型中热力学量的涨落效应[J].物理学报,2014,(19):1-9,9.基金项目
湖南省自然科学基金(批准号:12JJ3011和14JJ6043)和湖南省教育厅科学研究计划项目(批准号:10C0509)资助的课题.* Project supported by the Natural Science Foundation of Hunan Province, China (Grant Nos.12JJ3011,14JJ6043), and the Scientific Research Foundation of the Education Department of Hunan Province, China (Grant No.10C0509) （批准号:12JJ3011和14JJ6043）
