Worldvolume approach to the tempered Lefschetz thimble method

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

Going with the flow: a new solution to the sign problem

Autor: Gökçe Başar

Publikováno v: Nuclear Physics A. 967:852-855

We discuss a novel solution for the sign problem which prevents first principle Monte-Carlo computations of QCD at finite chemical potential (especially important for both the search for the critical point and neutron star physics) as well as real ti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0584953ceef2da993c83c1acc237de0
https://doi.org/10.1016/j.nuclphysa.2017.05.004

On the validity of complex Langevin method for path integral computations

Autor: Zhenning Cai, Xiaoyu Dong, Yang Kuang

The complex Langevin (CL) method is a classical numerical strategy to alleviate the numerical sign problem in the computation of lattice field theories. Mathematically, it is a simple numerical tool to compute a wide class of high-dimensional and osc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6081efd8217d4ec560a936366dffb2e9

Dynamical stabilisation of complex Langevin simulations of QCD

Autor: Felipe Attanasio, Benjamin Jäger

Publikováno v: European Physical Journal
European Physical Journal C: Particles and Fields, Vol 79, Iss 1, Pp 1-11 (2019)
Attanasio, F & Jäger, B 2019, ' Dynamical stabilisation of complex Langevin simulations of QCD ', European Physical Journal C, vol. 79, no. 1, 16 . https://doi.org/10.1140/epjc/s10052-018-6512-7

The ability to describe strongly interacting matter at finite temperature and baryon density provides the means to determine, for instance, the equation of state of QCD at non-zero baryon chemical potential. From a theoretical point of view, direct l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff2f8a9d35d7b8528b48b1b81ae7a18d
http://repo.scoap3.org/api

Numerical approximations for highly oscillatory Bessel transforms and applications

Autor: Ruyun Chen

Publikováno v: Journal of Mathematical Analysis and Applications. 421:1635-1650

This paper presents an efficient numerical method for approximating highly oscillatory Bessel transforms. Based on analytic continuation, we transform the integrals into the problems of integrating the forms on [ 0 , + ∞ ) with the integrand that d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84c107a8867b04f09804a387e0e100e3
https://doi.org/10.1016/j.jmaa.2014.08.021