Effective temperature and fluctuation-dissipation theorem in athermal granular systems:A review

作     者：陈琼 厚美瑛 

作者机构：Key Laboratory of Soft Matter PhysicsBeijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of Sciences 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2014年第23卷第7期

页      面：73-78页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported by the Key Program of the National Natural Science Foundation of China (Grant No. 11034010) the National Natural Science Foundation of China (Grant No. 11274354) the Special Fund for Earthquake Research of China (Grant No. 201208011) the Chinese Academy of Sciences "Strategic Priority Research Program -SJ-10" (Grant No. XDA04020200) 

主　　题：granular systems fluctuation-dissipation relation non-equilibrium thermodynamics 

摘      要：The definition and the previous measurements of a dynamics-relevant temperature-like quantity in granular media are reviewed for slow and fast particle systems. Especially, the validity of the fluctuation-dissipation theorem in such an athermal system is explored. Experimental evidences for the fluctuation-dissipation theorem relevant effect temperature support the athermal statistical mechanics, which has been widely explored in recent years by physicists. Difficulties encountered in defining temperature or establishing thermodynamics or statistical mechanics in non-equilibrium situations are discussed.