Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Masafumi Fukuma"'
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 11, Pp 1-20 (2018)
Abstract In our previous work [1], we introduced to an arbitrary Markov chain Monte Carlo algorithm a distance between configurations. This measures the difficulty of transition from one configuration to the other, and enables us to investigate the r
Externí odkaz:
https://doaj.org/article/e7d1ed1e14bb41369cf5d5769b85fe14
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 12, Pp 1-18 (2017)
Abstract For a given Markov chain Monte Carlo algorithm we introduce a distance between two configurations that quantifies the difficulty of transition from one configuration to the other configuration. We argue that the distance takes a universal fo
Externí odkaz:
https://doaj.org/article/1188688eb4504b83a1fe44866cad0333
Publikováno v:
Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02ba6a2fb165033d4d4e09738e8ca0f4
https://doi.org/10.22323/1.430.0011
https://doi.org/10.22323/1.430.0011
Autor:
Masafumi Fukuma, Nobuyuki Matsumoto
Publikováno v:
Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021).
The numerical sign problem has long been a major obstacle to first-principles calculations in various important fields of physics. We report that the recently proposed algorithm, tempered Lefschetz thimble method (TLTM), and its worldvolume extension
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f725c53e157983e24e4087bb19aed379
https://doi.org/10.22323/1.396.0395
https://doi.org/10.22323/1.396.0395
Publikováno v:
Progress of Theoretical and Experimental Physics. 2021(12)
We propose a novel tensor network representation for two-dimensional Yang–Mills theories with arbitrary compact gauge groups. In this method, tensor indices are given directly by group elements with no direct use of the character expansion. We appl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aad3ad9bf6073a1c6470957ad6da8a64
http://hdl.handle.net/2433/276919
http://hdl.handle.net/2433/276919
Publikováno v:
Progress of Theoretical and Experimental Physics
We discuss the statistical analysis method for the worldvolume hybrid Monte Carlo (WV-HMC) algorithm [arXiv:2012.08468], which was recently introduced to substantially reduce the computational cost of the tempered Lefschetz thimble method. In the WV-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbdf071c7be64b9c98a5913f7fe88661
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
Nobuyuki Matsumoto, Masafumi Fukuma
Publikováno v:
Progress of Theoretical and Experimental Physics. 2021(2)
As a solution towards the numerical sign problem, we propose a novel Hybrid Monte Carlo algorithm, in which molecular dynamics is performed on a continuum set of integration surfaces foliated by the antiholomorphic gradient flow ("the worldvolume of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62edda339c347e687f96ba5bd835675c
http://hdl.handle.net/2433/262259
http://hdl.handle.net/2433/262259
The worldvolume tempered Lefschetz thimble method (WV-TLTM) is an algorithm towards solving the sign problem, where hybrid Monte Carlo updates are performed on a continuous accumulation of flowed surfaces foliated by the anti-holomorphic gradient flo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8532d745bbe190249d5b31704c91f122
Autor:
Masafumi Fukuma, Nobuyuki Matsumoto
Publikováno v:
Journal of Physics: Conference Series. 2207:012054
We review the tempered Lefschetz thimble method and its extension, which was recently proposed as a versatile solution to the numerical sign problem. We exemplify the effectiveness of the method by its successful application to a chiral random matrix
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed4d0b13f5a581eec958153608efb10c
https://doi.org/10.1088/1742-6596/2207/1/012054
https://doi.org/10.1088/1742-6596/2207/1/012054
The tempered Lefschetz thimble method (TLTM) is a parallel-tempering algorithm towards solving the numerical sign problem. It tames both the sign and ergodicity problems simultaneously by tempering the system with the flow time of continuous deformat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e86bd02802396c3ee1eeb4c125150d39