TY - JOUR
T1 - Study of 2+1 flavor finite-temperature QCD using improved Wilson quarks at the physical point with the gradient flow
AU - Kanaya, Kazuyuki
AU - Baba, Atsushi
AU - Suzuki, Asobu
AU - Ejiri, Shinji
AU - Kitazawa, Masakiyo
AU - Suzuki, Hiroshi
AU - Taniguchi, Yusuke
AU - Umeda, Takashi
N1 - Funding Information:
We are grateful to Prof. R.V. Harlander for valuable discussions. This work was in part supported by JSPS KAKENHI Grant Numbers JP19K03819, JP19H05146, JP18K03607, JP17K05442 and JP16H03982. This research used computational resources of COMA, Oakforest-PACS, and Cygnus provided by the Interdisciplinary Computational Science Program of Center for Computational Sciences, University of Tsukuba, K and other computers of JHPCN through the HPCI System Research Projects (Project ID:hp17208, hp190028, hp190036) and JHPCN projects (jh190003, jh190063), OCTOPUS at Cybermedia Center, Osaka University, and ITO at R.I.I.T., Kyushu University. The simulations were in part based on the lattice QCD code set Bridge++ [20].
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
PY - 2019
Y1 - 2019
N2 - We study thermodynamic properties of 2 + 1 flavor QCD applying the Small Flow-time eXpansion (SFtX) method based on the gradient flow. The method provides us with a general way to compute correctly renormalized observables irrespective of explicit violation of symmetries due to the regularization, such as the Poincaré and chiral symmetries on the lattice. We report on the status of our on-going project to compute the energy-momentum tensor and the chiral condensate at the physical point with improved Wilson quarks, extending our previous study with slightly heavy u and d quarks. We also report on our test of two-loop matching coefficients recently calculated by Harlander et al., revisiting the case of QCD with slightly heavy u and d quarks. Our results suggest that the SFtX method is powerful in extracting physical observables on the lattice.
AB - We study thermodynamic properties of 2 + 1 flavor QCD applying the Small Flow-time eXpansion (SFtX) method based on the gradient flow. The method provides us with a general way to compute correctly renormalized observables irrespective of explicit violation of symmetries due to the regularization, such as the Poincaré and chiral symmetries on the lattice. We report on the status of our on-going project to compute the energy-momentum tensor and the chiral condensate at the physical point with improved Wilson quarks, extending our previous study with slightly heavy u and d quarks. We also report on our test of two-loop matching coefficients recently calculated by Harlander et al., revisiting the case of QCD with slightly heavy u and d quarks. Our results suggest that the SFtX method is powerful in extracting physical observables on the lattice.
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M3 - Conference article
AN - SCOPUS:85099602522
SN - 1824-8039
VL - 363
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 088
T2 - 37th International Symposium on Lattice Field Theory, LATTICE 2019
Y2 - 16 June 2019 through 22 June 2019
ER -