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| 低温均匀电场中正电子气的化学势和热容量 | |
| 引用本文： | 付奎,龙姝明,孙彦清,赵升频,熊斌. 低温均匀电场中正电子气的化学势和热容量[J]. 四川师范大学学报(自然科学版), 2011, 34(3): 381-384. DOI: 10.3969/j.issn.1001-8395.2011.03.021 |
| 作者姓名： | 付奎 龙姝明 孙彦清 赵升频 熊斌 |
| 作者单位： | 1. 汉中职业技术学院计算机与电子科学系,陕西汉中,723000 2. 陕西理工学院物理系,陕西汉中,723000 3. 陕西理工学院化学与环境科学学院,陕西汉中,723000 |
| 基金项目： | 陕西省自然科学基础研究计划基金(2006A15)资助项目 |
| 摘 要： | 实验上超冷简并费米气体的获得以及分子玻色-爱因斯坦凝聚的成功观测,都是在外势存在的条件下进行的.因此,探讨外势作用下费米体系的热力学性质将有助于认识费米体系的简并特性,进一步揭示体系的各种宏观量子效应的实质.应用统计物理学的半经典近似方法导出了低温均匀电场中正电子体系的量子态密度,给出了体系的化学势和热容量在低温条件下的解析表达式,分析讨论了均匀电场对正电子体系化学势和热容量的影响.结果表明,低温情况下均匀外电场对体系的化学势和热容量有轻微影响. |
| 关 键 词： | 正电子气 化学势 热容量 均匀电场 |
Chemical Potential and Heat Capacity of Positive Electron Gas at Low Temperature and in Uniform Electric Field |
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| FU Kui,LONG Shu-ming,SUN Yan-qing,ZHAO Sheng-pin,XIONG Bin. Chemical Potential and Heat Capacity of Positive Electron Gas at Low Temperature and in Uniform Electric Field[J]. Journal of Sichuan Normal University(Natural Science), 2011, 34(3): 381-384. DOI: 10.3969/j.issn.1001-8395.2011.03.021 | |
| Authors: | FU Kui LONG Shu-ming SUN Yan-qing ZHAO Sheng-pin XIONG Bin |
| Affiliation: | FU Kui1,LONG Shu-ming2,SUN Yan-qing2,ZHAO Sheng-pin2,XIONG Bin3(1.Department of Computer and Electronic Science,Vocational and Technical Institute,Hanzhong 723000,Shaanxi,2.Department of Physics,Shaanxi College of Technology,3.School of Chemistry and Environmental science,Shaanxi) |
| Abstract: | To investigate the thermodynamic properties of Fermi system in external field is helpful to understand the degenerate characteristics of Fermi system,which can show the essence of various macroscopic.Based on the semiclassical statistical method,after deriving the quantum state density of the positive electron gas at the low temperature and in uniform electric field,the analytic formula of its chemical potential and heat capacity is obtained in this paper,and detailed analysis and discussion for the influen... |
| Keywords: | positive electron gas chemical potential heat capacity uniform electric field |
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