Full QCD with milder topological freezing
We simulate N<inf>f</inf> = 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 CPN−1 models, which has been recently implemented and widely employed in 4d SU(N) pure Ya...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/408825 |
| Acceso en línea: | http://hdl.handle.net/10261/408825 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85202753105&doi=10.1007%2FJHEP08%282024%29236&partnerID=40&md5=2f71fdf1d4157d31aa853bbe38d5ae1c |
| Access Level: | acceso abierto |
| Palabra clave: | Algorithms and Theoretical Developments Lattice QCD Vacuum Structure and Confinement |
| Sumario: | We simulate N<inf>f</inf> = 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 CPN−1 models, which has been recently implemented and widely employed in 4d 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. © The Author(s) 2024. |
|---|