Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Cossu, Guido"'
Autor:
Boyle, Peter, Cossu, Guido, Filaci, Gianluca, Lehner, Christoph, Portelli, Antonin, Yamaguchi, Azusa
We discuss a substantial update to the Grid software library for Lattice QCD, enabling it to port to multiple GPU architectures while retaining CPU vectorisation and SIMD execution within OpenMP threads. The GPU environments supported include vendor
Externí odkaz:
http://arxiv.org/abs/2203.06777
In lattice calculations, the approach to the continuum limit is hindered by the severe freezing of the topological charge, which prevents ergodic sampling in configuration space. In order to significantly reduce the autocorrelation time of the topolo
Externí odkaz:
http://arxiv.org/abs/2102.03630
Autor:
Cossu, Guido, Del Debbio, Luigi, Juttner, Andreas, Kitching-Morley, Ben, Lee, Joseph K. L., Portelli, Antonin, Rocha, Henrique Bergallo, Skenderis, Kostas
Publikováno v:
Phys. Rev. Lett. 126, 221601 (2021)
We present a study of the IR behaviour of a three-dimensional super-renormalisable quantum field theory (QFT) consisting of a scalar field in the adjoint of $SU(N)$ with a $\varphi^4$ interaction. A bare mass is required for the theory to be massless
Externí odkaz:
http://arxiv.org/abs/2009.14768
Autor:
Suzuki, Kei, Aoki, Sinya, Aoki, Yasumichi, Cossu, Guido, Fukaya, Hidenori, Hashimoto, Shoji, Rohrhofer, Christian
We investigate the high-temperature phase of QCD using lattice QCD simulations with $N_f = 2$ dynamical M\"obius domain-wall fermions. On generated configurations, we study the axial $U(1)$ symmetry, overlap-Dirac spectra, screening masses from meson
Externí odkaz:
http://arxiv.org/abs/2001.07962
Using lattice QCD simulations with $N_f = 2$ dynamical fermions, we study the axial $U(1)$ symmetry, topological charge, and Dirac eigenvalue spectra in the high-temperature phase in which the chiral symmetry is restored. Our gauge ensembles are gene
Externí odkaz:
http://arxiv.org/abs/1908.11684
Publikováno v:
Eur. Phys. J. C 79 (2019) 638
We present a non-perturbative lattice study of SU(4) gauge theory with two flavors of fermions in the fundamental representation and two in the two-index antisymmetric representation: a theory closely related to a minimal partial-compositeness model
Externí odkaz:
http://arxiv.org/abs/1904.08885
The axial $U(1)$ symmetry in the high-temperature phase is investigated with $N_f = 2$ lattice QCD simulations. The gauge ensembles are generated with M\"obius domain-wall fermions, and the overlap/domain-wall reweighting is applied. We find that the
Externí odkaz:
http://arxiv.org/abs/1812.06621
Publikováno v:
Phys. Rev. B 100, 064304 (2019)
We train a set of Restricted Boltzmann Machines (RBMs) on one- and two-dimensional Ising spin configurations at various values of temperature, generated using Monte Carlo simulations. We validate the training procedure by monitoring several estimator
Externí odkaz:
http://arxiv.org/abs/1810.11503
We compute the topological susceptibility $\chi_t$ of 2+1-flavor lattice QCD with dynamical M\"obius domain-wall fermions, whose residual mass is kept at 1 MeV or smaller. In our analysis, we focus on the fluctuation of the topological charge density
Externí odkaz:
http://arxiv.org/abs/1712.05541
We investigate the axial $U(1)_A$ symmetry breaking above the critical temperature in two-flavor lattice QCD. The ensembles are generated with dynamical M\"obius domain-wall or reweighted overlap fermions. The $U(1)_A$ susceptibility is extracted fro
Externí odkaz:
http://arxiv.org/abs/1711.09239