PoS - Proceedings of Science
Volume 430 - The 39th International Symposium on Lattice Field Theory (LATTICE2022) - Vacuum Structure, Confinement, and Chiral Symmetry
Topological susceptibility in high temperature full QCD via staggered spectral projectors
F. D'Angelo*, A. Athenodorou, C. Bonanno, C. Bonati, G. Clemente, M. D'Elia, L. Maio, G. Martinelli, F. Sanfilippo and A. Todaro
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Pre-published on: December 06, 2022
Published on: April 06, 2023
We compute the topological susceptibility of $N_f = 2+1$ QCD at the physical point in a temperature range going from 200 to 600 MeV. We adopt a multicanonical approach to enhance topological fluctuations and a definition of the susceptibility based on the spectral projectors over the eigenmodes of the staggered Dirac operator. This method allows to reduce lattice artifacts affecting the standard gluonic definition, making the continuum limit extrapolation more reliable.
DOI: https://doi.org/10.22323/1.430.0393
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