Equation of state in (2+1)-flavor QCD at physical point with improved Wilson fermion action using gradient flow
Equation of state in (2+1)-flavor QCD at physical point with improved Wilson fermion action using gradient flow
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使用梯度流改进威尔逊费米子作用的 (2 1) 味 QCD 物理点状态方程
DOI：
10.1051/epjconf/201817507023
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发表时间：
2018
影响因子：
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通讯作者：
Yusuke Taniguchi and Takash Umeda
中科院分区：
文献类型：
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作者：
Kazuyuki Kanaya;Shinji Ejiri;Ryo Iwami;Masakiyo Kitazawa;Hiroshi Suzuki;Yusuke Taniguchi and Takash Umeda
我们应用基于梯度流的Makino和Suzuki方法研究了物理点上的能量动量张量和状态方程以及(2+1)味QCD中的手性凝聚态。我们采用非微扰 O(a) 改进的威尔逊夸克作用和重正化群改进的岩崎规范作用。在 Lattice 2016 上，我们展示了重夸克质点 (2+1)-味 QCD 研究的初步结果。现在，我们将研究扩展到物理点，并在 T≃ 155.544 MeV（Nt= 4-14，包括 oddNt）范围内以 ≃ 0:09 fm 进行有限温度模拟。我们展示了重型 QCD 研究的最终结果，并展示了迄今为止在物理点获得的一些初步结果。
We study the energy-momentum tensor and the equation of state as well as the chiral condensate in (2+1)-flavor QCD at the physical point applying the method of Makino and Suzuki based on the gradient flow. We adopt a nonperturbatively O(a)- improved Wilson quark action and the renormalization group-improved Iwasaki gauge action. At Lattice 2016, we have presented our preliminary results of our study in (2+1)- flavor QCD at a heavyu;dquark mass point. We now extend the study to the physical point and perform finite-temperature simulations in the rangeT≃ 155.544 MeV (Nt= 4-14 including oddNt’s) at a ≃ 0:09 fm. We show our final results of the heavy QCD study and present some preliminary results obtained at the physical point so far.