{"title":"费米子的连续时间量子蒙特卡罗方法:超越辅助场框架","authors":"A. Rubtsov, V. Savkin, A. Lichtenstein","doi":"10.1103/PhysRevB.72.035122","DOIUrl":null,"url":null,"abstract":"A numerically exact continuous-time quantum Monte Carlo algorithm for finite fermionic systems with nonlocal interactions is proposed. The scheme is particularly applicable for general multiband time-dependent correlations, since it does not invoke Hubbard-Stratonovich transformation. The present determinantal grand-canonical method is based on a stochastic series expansion for the partition function in the interaction representation. The results for the Green function and for the time-dependent susceptibility of multiorbital supersymmetric impurity model with a spin-flip interaction are presented.","PeriodicalId":15816,"journal":{"name":"Journal of Experimental and Theoretical Physics Letters","volume":"54 3","pages":"61-65"},"PeriodicalIF":0.0000,"publicationDate":"2004-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"397","resultStr":"{\"title\":\"Continuous-time quantum Monte Carlo method for fermions: Beyond auxiliary field framework\",\"authors\":\"A. Rubtsov, V. Savkin, A. Lichtenstein\",\"doi\":\"10.1103/PhysRevB.72.035122\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A numerically exact continuous-time quantum Monte Carlo algorithm for finite fermionic systems with nonlocal interactions is proposed. The scheme is particularly applicable for general multiband time-dependent correlations, since it does not invoke Hubbard-Stratonovich transformation. The present determinantal grand-canonical method is based on a stochastic series expansion for the partition function in the interaction representation. The results for the Green function and for the time-dependent susceptibility of multiorbital supersymmetric impurity model with a spin-flip interaction are presented.\",\"PeriodicalId\":15816,\"journal\":{\"name\":\"Journal of Experimental and Theoretical Physics Letters\",\"volume\":\"54 3\",\"pages\":\"61-65\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"397\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Experimental and Theoretical Physics Letters\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1103/PhysRevB.72.035122\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Experimental and Theoretical Physics Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1103/PhysRevB.72.035122","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Continuous-time quantum Monte Carlo method for fermions: Beyond auxiliary field framework
A numerically exact continuous-time quantum Monte Carlo algorithm for finite fermionic systems with nonlocal interactions is proposed. The scheme is particularly applicable for general multiband time-dependent correlations, since it does not invoke Hubbard-Stratonovich transformation. The present determinantal grand-canonical method is based on a stochastic series expansion for the partition function in the interaction representation. The results for the Green function and for the time-dependent susceptibility of multiorbital supersymmetric impurity model with a spin-flip interaction are presented.
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