Distribution of equilibrium free energies in a thermodynamic system with broken ergodicity
文献类型：期刊论文
| 作者 | Zhou Hai-Jun ; Li Kang; Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
|
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2008 |
| 卷号 | 49期号:3页码:659-664 |
| 关键词 | Spin-glasses Temperature Transition Dynamics Models |
| ISSN号 | 0253-6102 |
| 英文摘要 | At low temperature,,; the configurational phase space of a macroscopic complex system (e-g., a spin-glass) of N similar to 10(23) interacting particles may split into an exponential number Omega(s) similar to exp(const x N) of ergodic sub-spaces (thermodynamic states). It is usually assumed that the equilibrium collective behavior of such a system is determined by its ground thermodynamic states of the minimal free-energy density, and that the equilibrium free energies follow the distribution of exponential decay. But actually for some complex systems, the equilibrium free-energy values may follow a Gaussian distribution within an intermediate temperature range, and consequently their equilibrium properties are contributed by excited thermodynamic states. Based on this analysis, the re-weighting parameter y in the cavity approach of spin-glasses is easily understood. Depending on the free-energy distribution, the optimal y can either be equal to or be strictly less than the inverse temperature beta. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000254252700030 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5558]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou Hai-Jun,Li Kang,Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. Distribution of equilibrium free energies in a thermodynamic system with broken ergodicity[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2008,49(3):659-664. |
| APA | Zhou Hai-Jun,Li Kang,&Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2008).Distribution of equilibrium free energies in a thermodynamic system with broken ergodicity.COMMUNICATIONS IN THEORETICAL PHYSICS,49(3),659-664. |
| MLA | Zhou Hai-Jun,et al."Distribution of equilibrium free energies in a thermodynamic system with broken ergodicity".COMMUNICATIONS IN THEORETICAL PHYSICS 49.3(2008):659-664. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。