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- W4310555198 abstract "The purpose of analytical continuation is to establish a real frequency spectral representation of single-particle or two-particle correlation function (such as Green's function, self-energy function, and dynamical susceptibilities) from noisy data generated in finite temperature quantum Monte Carlo simulations. It requires numerical solutions of a family of Fredholm integral equations of the first kind, which is indeed a challenging task. In this paper, an open source toolkit (dubbed ACFlow) for analytical continuation of quantum Monte Carlo data is presented. We at first give a short introduction to the analytical continuation problem. Next, three primary analytical continuation algorithms, including maximum entropy method, stochastic analytical continuation, and stochastic optimization method, as implemented in this toolkit are reviewed. And then we elaborate major features, implementation details, and basic usage of this toolkit. Finally, four representative examples are shown to demonstrate usefulness and flexibility of the ACFlow toolkit." @default.
- W4310555198 created "2022-12-12" @default.
- W4310555198 creator A5071231802 @default.
- W4310555198 date "2022-11-29" @default.
- W4310555198 modified "2023-10-16" @default.
- W4310555198 title "ACFlow: An open source toolkit for analytical continuation of quantum Monte Carlo data" @default.
- W4310555198 doi "https://doi.org/10.1016/j.cpc.2023.108863" @default.
- W4310555198 hasPublicationYear "2022" @default.
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