Equation of state in (2+1)-flavor QCD with gradient flow

Kazuyuki Kanaya, Shinji Ejiri, Ryo Iwami, Masakiyo Kitazawa, Hiroshi Suzuki, Yusuke Taniguchi, Takashi Umeda, Naoki Wakabayashi

研究成果: Contribution to journalConference article


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 < 280MeV (Nτ > 10), while a disagreement is found at T > 350MeV (Nτ < 8) presumably due to the small-Nτ lattice artifact. We also report on the results on the 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.

ジャーナルProceedings of Science
Part F128557
出版物ステータス出版済み - 1 1 2016
イベント34th Annual International Symposium on Lattice Field Theory, LATTICE 2016 - Southampton, 英国
継続期間: 7 24 20167 30 2016

All Science Journal Classification (ASJC) codes

  • General

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    Kanaya, K., Ejiri, S., Iwami, R., Kitazawa, M., Suzuki, H., Taniguchi, Y., Umeda, T., & Wakabayashi, N. (2016). Equation of state in (2+1)-flavor QCD with gradient flow. Proceedings of Science, Part F128557.