Full QCD with milder topological freezing
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.
Authors
- Massimo D’Elia (ORCID: https://orcid.org/0000-0003-4341-9357)
- Luca Parente (ORCID: https://orcid.org/0009-0008-3395-8510)
- Giuseppe Clemente (ORCID: https://orcid.org/0000-0002-7705-4897)
- Lorenzo Maio (ORCID: https://orcid.org/0000-0001-5267-4064)
- Claudio Bonanno (ORCID: https://orcid.org/0000-0002-1421-6510)
Institutions
- University of Pisa (IT)
- Centre National de la Recherche Scientifique (FR)
- Université de Toulon (FR)
- Aix-Marseille Université (FR)
- Istituto Nazionale di Fisica Nucleare, Sezione di Pisa (IT)
- Universidad Autónoma de Madrid (ES)
Publication Details
- Journal
- Journal of High Energy Physics
- Published
- 2024-08-30
- DOI
- https://doi.org/10.1007/jhep08(2024)236
- Citations
- 6
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 3.96
Funders
- Strong
- European Commission
- Centre National de la Recherche Scientifique
- Horizon 2020 Framework Programme
- Agencia Estatal de Investigación