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| 相对论BCS-BEC 渡越热力学 | |
| 引用本文： | 傅永平. 相对论BCS-BEC 渡越热力学[J]. 科学技术与工程, 2012, 12(34): 9137-9139,9143 |
| 作者姓名： | 傅永平 |
| 作者单位： | 1. 临沧师范高等专科学校数理系,临沧677000;云南大学物理系,昆明650091 2. 云南大学物理系,昆明,650091 3. 临沧师范高等专科学校数理系,临沧,677000 |
| 基金项目： | 云南省教育厅科学研究基金项目 |
| 摘 要： | 利用Nambu-Gorkov表示,讨论了在相对论Fermi-Bose系统中的BCS-BEC渡越条件及其热力学性质,得到了临界点附近费米子的激发能谱。给出了临界温度附近和低于临界温度区域的能隙表达式。理论计算结果表明,渡越区在临界温度附近存在着零质量准粒子的激发。 |
| 关 键 词： | BCS-BEC渡越 相对论Fermi-Bose系统 热力学 |
| 收稿时间： | 2012-07-15 |
| 修稿时间： | 2012-08-07 |
Relativistic BCS-BES crossover thermodynamics |
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| Fu Yong Ping. Relativistic BCS-BES crossover thermodynamics[J]. Science Technology and Engineering, 2012, 12(34): 9137-9139,9143 | |
| Authors: | Fu Yong Ping |
| Affiliation: | 1(Department of Physics and Mathematics,Lincang Teachers College 1,Lincang 677000,P.R.China;Department of Physics,Yunnan University 2,Kunming 650091,P.R.China) |
| Abstract: | By using the Nambu-Gorkov transformation, the relativistic BCS-BEC crossover thermodynamics in the Fermi-Bose system is discussed, and the exited energy spectrum nearing the critical point is also found. The energy gap equation, in the case of and , is also derived. The results show that there is not a strict critical point in the system, and the zero mass quasiparticles may condense in the critical temperature. |
| Keywords: | BCS-BEC crossover relativistic Fermi-Bose system thermodynamics |
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