{"title":"统计力学中的变分方法","authors":"R. Phythian","doi":"10.1088/0305-4470/5/11/004","DOIUrl":null,"url":null,"abstract":"A variational method, similar to the Frenkel variational method of quantum mechanics, is derived for the time development of phase functions of a system. It is shown how this method may be used to obtain approximations for quantities of interest such as the density autocorrelation function of a fluid in equilibrium.","PeriodicalId":54612,"journal":{"name":"Physics-A Journal of General and Applied Physics","volume":"17 1","pages":"1566-1572"},"PeriodicalIF":0.0000,"publicationDate":"1972-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A variational method in statistical mechanics\",\"authors\":\"R. Phythian\",\"doi\":\"10.1088/0305-4470/5/11/004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A variational method, similar to the Frenkel variational method of quantum mechanics, is derived for the time development of phase functions of a system. It is shown how this method may be used to obtain approximations for quantities of interest such as the density autocorrelation function of a fluid in equilibrium.\",\"PeriodicalId\":54612,\"journal\":{\"name\":\"Physics-A Journal of General and Applied Physics\",\"volume\":\"17 1\",\"pages\":\"1566-1572\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1972-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics-A Journal of General and Applied Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1088/0305-4470/5/11/004\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics-A Journal of General and Applied Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/0305-4470/5/11/004","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A variational method, similar to the Frenkel variational method of quantum mechanics, is derived for the time development of phase functions of a system. It is shown how this method may be used to obtain approximations for quantities of interest such as the density autocorrelation function of a fluid in equilibrium.
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