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- W4320186489 abstract "The numerical sign problem is a major obstacle to the quantitative understanding of many important physical systems with first-principles calculations. Typical examples for such systems include finite-density QCD, strongly-correlated electron systems and frustrated spin systems, as well as the real-time dynamics of quantum systems. In this talk, we argue that the tempered Lefschetz thimble method (TLTM) [M. Fukuma and N. Umeda, arXiv:1703.00861] and its extension, the worldvolume tempered Lefschetz thimble method (WV-TLTM) [M. Fukuma and N. Matsumoto, arXiv:2012.08468], may be a reliable and versatile solution to the sign problem. We demonstrate the effectiveness of the algorithm by exemplifying a successful application of WV-TLTM to the Stephanov model, which is an important toy model of finite-density QCD. We also discuss the computational scaling of WV-TLTM." @default.
- W4320186489 created "2023-02-13" @default.
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- W4320186489 date "2022-05-02" @default.
- W4320186489 modified "2023-09-23" @default.
- W4320186489 title "Numerical sign problem and the tempered Lefschetz thimble method" @default.
- W4320186489 doi "https://doi.org/10.48550/arxiv.2205.00652" @default.
- W4320186489 hasPublicationYear "2022" @default.
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