Zobrazeno 1 - 10
of 233
pro vyhledávání: '"Massimo D'Elia"'
The $${\textrm{SU}}(3)$$ SU ( 3 ) twisted gradient flow strong coupling without topological freezing
Autor:
Claudio Bonanno, Jorge Luis Dasilva Golán, Massimo D’Elia, Margarita García Pérez, Andrea Giorgieri
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 9, Pp 1-20 (2024)
Abstract We investigate the role of topology on the lattice determination of the $${\textrm{SU}}(3)$$ SU ( 3 ) strong coupling renormalized via gradient flow. To deal with the topological freezing of standard local algorithms, the definition of the c
Externí odkaz:
https://doaj.org/article/3f14e45e6f8147928672876d61cae3d1
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-26 (2024)
Abstract We simulate N f = 2 + 1 QCD at the physical point combining open and periodic boundary conditions in a parallel tempering framework, following the original proposal by M. Hasenbusch for 2d CP N−1 models, which has been recently implemented
Externí odkaz:
https://doaj.org/article/8d791bd4a9d34c4fbe682c9583d03cd2
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-33 (2024)
Abstract We investigate, by means of numerical lattice simulations, the θ-dependence of the critical deconfinement temperature of SU(N) gauge theories at large N : T c (θ) = T c (0)[1 – Rθ 2 + O(θ 4)], with R ~ O(1/N 2). We follow two different
Externí odkaz:
https://doaj.org/article/d7e9e6cd4e8143b48cd5d33951e0c351
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-33 (2023)
Abstract We compute the chiral condensate of 2 + 1 QCD from the mode number of the staggered Dirac operator, performing controlled extrapolations to both the continuum and the chiral limit. We consider also alternative strategies, based on the quark
Externí odkaz:
https://doaj.org/article/f7ed6640998d4c8da3fc6ee18ddef39e
Autor:
Andreas Athenodorou, Claudio Bonanno, Claudio Bonati, Giuseppe Clemente, Francesco D’Angelo, Massimo D’Elia, Lorenzo Maio, Guido Martinelli, Francesco Sanfilippo, Antonino Todaro
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 10, Pp 1-33 (2022)
Abstract We compute the topological susceptibility of N f = 2 + 1 QCD with physical quark masses in the high-temperature phase, using numerical simulations of the theory discretized on a space-time lattice. More precisely we estimate the topological
Externí odkaz:
https://doaj.org/article/f7be030c0e534fd69d844cef73cce215
Publikováno v:
Physics Letters B, Vol 833, Iss , Pp 137281- (2022)
In commonly used Monte Carlo algorithms for lattice gauge theories the integrated autocorrelation time of the topological charge is known to be exponentially-growing as the continuum limit is approached. This topological freezing, whose severity incr
Externí odkaz:
https://doaj.org/article/75e9d1b7735a4510bdabdd8fdfb7dda3
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-28 (2021)
Abstract We discuss the discretization of Yang-Mills theories on Dynamical Triangulations in the compact formulation, with gauge fields living on the links of the dual graph associated with the triangulation, and the numerical investigation of the mi
Externí odkaz:
https://doaj.org/article/1e24d0c68f164a42bbac148c67efcbf2
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-23 (2021)
Abstract We simulate 4d SU(N) pure-gauge theories at large N using a parallel tempering scheme that combines simulations with open and periodic boundary conditions, implementing the algorithm originally proposed by Martin Hasenbusch for 2d CP N–1 m
Externí odkaz:
https://doaj.org/article/cf3acff75e7747069b7780cd9039ee88
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 10, Pp 1-19 (2019)
Abstract The spectral projectors method is a way to obtain a theoretically well posed definition of the topological susceptibility on the lattice. Up to now this method has been defined and applied only to Wilson fermions. The goal of this work is to
Externí odkaz:
https://doaj.org/article/a289002d2a0843d294da68956b1a00a2
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-28 (2019)
Abstract We investigate, by numerical simulations on a lattice, the θ-dependence of 2d CP N − 1 models for a range of N going from 9 to 31, combining imaginary θ and simulated tempering techniques to improve the signal-to-noise ratio and alleviat
Externí odkaz:
https://doaj.org/article/8aedee5219fc4127b11686bd542ab21d