| 用随机矩阵理论研究常规超导纳米粒子的电子热容 |
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| 引用本文： | 施振刚,刘学行,程南璞,陈志谦.用随机矩阵理论研究常规超导纳米粒子的电子热容[J].西南师范大学学报(自然科学版),2004,29(1):62-66. |
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| 作者姓名： | 施振刚 刘学行 程南璞 陈志谦 |
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| 作者单位： | 1. 西南师范大学,物理学院,重庆,400715
2. 重庆工商大学,理学院,重庆,400033 |
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| 基金项目： | 国家自然科学基金资助项目(10147207)，重庆市科委应用基础资助项目，西南师范大学自然科学基金资助课题. |
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| 摘 要： | 考虑了奇/偶电子数分布,用静态路径近似(SPA)方法计算了随机矩阵理论中高斯正交系综(GOE)所对应的电子能级分布下常规超导纳米粒子的电子热容,得到了弱自旋轨道耦合和弱磁场中奇/偶电子数分布下相变临界区域附近的电子热容,并做了简单分析.
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| 关 键 词： | 常规超导纳米粒子 配分函数 静态路径近似 随机矩阵理论 电子热容 |
| 文章编号： | 1000-5471(2004)01-0062-05 |
| 修稿时间： | 2003年5月14日 |
Random Matrices Theory Applied to Specific Heat of Conventional Superconducting Nano-particles |
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| SHI Zhen-gang,LIU Xue-xing,CHENG Nan-pu,CHEN Zhi-qian. School of Physics,Southwest China Normal University,Chongqing ,China,. School of Science,Chongqing Technology and Business University,Chongqing ,China.Random Matrices Theory Applied to Specific Heat of Conventional Superconducting Nano-particles[J].Journal of Southwest China Normal University(Natural Science),2004,29(1):62-66. |
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| Authors: | SHI Zhen-gang LIU Xue-xing CHENG Nan-pu CHEN Zhi-qian School of Physics Southwest China Normal University Chongqing China School of Science Chongqing Technology and Business University Chongqing China |
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| Institution: | SHI Zhen-gang~1,LIU Xue-xing~2,CHENG Nan-pu~1,CHEN Zhi-qian~11. School of Physics,Southwest China Normal University,Chongqing 400715,China,2. School of Science,Chongqing Technology and Business University,Chongqing 400033,China |
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| Abstract: | The thermodynamic properties of an ensemble of conventional superconducting nano-particles are affected by the fluctuations of the order parameter, causing the important deviations from the results of mean-field theory, especially in the critical regime. We use the static paths approximation (SPA) calculating numerically the specific heat of conventional superconducting nano-particles in the grand canonical ensemble with an even or odd number of electrons by considering the effects of the level distribution and level correlation. |
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| Keywords: | conventional superconducting nano-particles partition function static paths approximation random matrix theory specific heat |
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