The energy-momentum tensor and equation of state are studied in finite-temperature (2+1)-flavor QCD with improved Wilson quarks using the method proposed by Makino and Suzuki based on the gradient flow. We find that the results of the gradient flow are consistent with the previous results using the T-integration method at T < about 280 MeV (Nt > about10), while a disagreement is found at T > about 350 MeV (Nt < about 8) presumably due to the small-Nt lattice artifact.
We also report on the results onthe renormalized chiral condensate and its disconnected susceptibility using the method of Hieda and Suzuki. The results show a clear signal of the expected chiral restoration crossover even with Wilson-type quarks which violate the chiral symmetry explicitly.
Volume 256 -
34th annual International Symposium on Lattice Field Theory (LATTICE2016) -
Nonzero Temperature and Density
Equation of state in (2+1)-flavor QCD with gradient flow
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Pre-published on:
January 30, 2017
Published on:
March 24, 2017
Abstract
DOI: https://doi.org/10.22323/1.256.0063
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.