Monte Carlo studies of quantum cosmology by the generalized Lefschetz thimble method
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2025)142
Abstract: Quantum cosmology aims at elucidating the beginning of our Universe. Back in early 80’s, Vilenkin and Hartle-Hawking put forward the “tunneling from nothing” and “no boundary” proposals. Recently there has been renewed interest in this… read more here.
Keywords: lefschetz thimble; cosmology; monte carlo; quantum cosmology ... See more keywords
Applying the tempered Lefschetz thimble method to the Hubbard model away from half filling
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DOI: 10.1103/physrevd.100.114510
Abstract: The tempered Lefschetz thimble method is a parallel-tempering algorithm towards solving the numerical sign problem. It uses the flow time of the gradient flow as a tempering parameter and is expected to tame both the… read more here.
Keywords: model away; thimble method; hubbard model; tempered lefschetz ... See more keywords