| 热力学平衡态的涨落判据 |
| |
| 引用本文： | 彭涛,刘全慧.热力学平衡态的涨落判据[J].大学物理,2008,27(6). |
| |
| 作者姓名： | 彭涛 刘全慧 |
| |
| 作者单位： | 湖南大学应用物理系理论物理研究所,湖南长沙,410082;湖南大学应用物理系理论物理研究所,湖南长沙,410082 |
| |
| 基金项目： | 教育部跨世纪优秀人才培养计划 |
| |
| 摘 要： | 任何热力学量的涨落在平衡态下都不能太大.特别地,要求熵和能量的涨落不大,就可以给出低温下热力学平衡态的普遍适用的判据.一些算例表明,低温下即使1023个粒子也不一定能达到热力学平衡态.
|
| 关 键 词： | 少粒子体系 低温 熵 能量 涨落 |
The fluctuation criterion for thermal equilibrium state |
| |
| PENG Tao,LIU Quan-hui.The fluctuation criterion for thermal equilibrium state[J].College Physics,2008,27(6). |
| |
| Authors: | PENG Tao LIU Quan-hui |
| |
| Abstract: | Every thermodynamic quantity in the thermal equilibrium state can never bear large fluctuation. Specially, a criterion is proposed for the existence of the thermal equilibrium state in order to obey the requirement that both energy and entropy fluctuations must be small. Examples show that the number of particles 1023 may be not large enough to guarantee the thermal equilibrium state for some systems at low temperature. |
| |
| Keywords: | system of less particles low temperature entropy energy fluctuation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
