Year: 2024
Type: article
Abstract: A bstract 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 2 d CP N −1 models, which has been recently implemented and widely employed in 4 d SU( N ) pure Yang-Mills theories too. We show that using this algorithm it is possible to achieve a sizable reduction of the auto-correlation time of the topological charge in dynamical fermions simulations both at zero and finite temperature, allowing to avoid topology freezing down to lattice spacings as fine as a ∼ 0 . 02 fm. Therefore, this implementation of the Parallel Tempering on Boundary Conditions algorithm has the potential to substantially push forward the investigation of the QCD vacuum properties by means of lattice simulations.
Source: Journal of High Energy Physics
Authors: Claudio Bonanno, Giuseppe Clemente, Massimo D’Elia, Lorenzo Maio, Luca Parente
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Awards: G14744916, G2114305129, G2262748287, G282847690, G300979063, G3111662533, G3142173218, G3272193715, The strong interaction at the frontier of knowledge: fundamental research and applications, G3454045019, G3480869486, G3673934177, G4042783231, G425668148, G434337789, G4937468798, G5080475149, European network for Particle physics, Lattice field theory and Extreme computing, G632107855, G683931746, G7434936867, G7451223319, G8442766987, G8570214820, G8951614284
OpenAlex ID: W4395065639