scholarly journals Energy–momentum tensor from the Yang–Mills gradient flow

2013 ◽  
Vol 2013 (8) ◽  
Author(s):  
Hiroshi Suzuki
Keyword(s):  
Energy Momentum Tensor ◽  
Gradient Flow ◽  
Momentum Tensor ◽  
Yang Mills

scholarly journals Energy-momentum tensor correlation function in Nf = 2 + 1 full QCD at finite temperature

2018 ◽  
Vol 175 ◽  
pp. 07013 ◽  
Author(s):  
Yusuke Taniguchi ◽  
Shinji Ejiri ◽  
Kazuyuki Kanaya ◽  
Masakiyo Kitazawa ◽  
Asobu Suzuki ◽  
...  
Keyword(s):  
Correlation Function ◽  
Finite Temperature ◽  
Linear Response ◽  
Quark Mass ◽  
Energy Momentum Tensor ◽  
Gradient Flow ◽  
Momentum Tensor ◽  
Entropy Density ◽  
Tensor Correlation ◽  
Renormalized Energy

We measure correlation functions of the nonperturbatively renormalized energy-momentum tensor in Nf = 2 + 1 full QCD at finite temperature by applying the gradient flow method both to the gauge and quark fields. Our main interest is to study the conservation law of the energy-momentum tensor and to test whether the linear response relation is properly realized for the entropy density. By using the linear response relation we calculate the specific heat from the correlation function. We adopt the nonperturba-tively improved Wilson fermion and Iwasaki gauge action at a fine lattice spacing = 0:07 fm. In this paper the temperature is limited to a single value T ≃ 232 MeV. The u, d quark mass is rather heavy with mπ=mρ ≃ 0:63 while the s quark mass is set to approximately its physical value.

scholarly journals Equation of state in (2+1)-flavor QCD at physical point with improved Wilson fermion action using gradient flow

2018 ◽  
Vol 175 ◽  
pp. 07023 ◽  
Author(s):  
Kazuyuki Kanaya ◽  
Shinji Ejiri ◽  
Ryo Iwami ◽  
Masakiyo Kitazawa ◽  
Hiroshi Suzuki ◽  
...  
Keyword(s):  
Equation Of State ◽  
Quark Mass ◽  
Energy Momentum Tensor ◽  
Gradient Flow ◽  
Chiral Condensate ◽  
Momentum Tensor ◽  
Mass Point ◽  
Physical Point ◽  
Preliminary Results ◽  
Fermion Action

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 heavy u; d quark mass point. We now extend the study to the physical point and perform finite-temperature simulations in the range T ≃ 155.544 MeV (Nt = 4-14 including odd Nt’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.

scholarly journals Equation of state for SU(3) gauge theory via the energy-momentum tensor under gradient flow

2016 ◽  
Vol 94 (11) ◽  
Author(s):  
Masakiyo Kitazawa ◽  
Takumi Iritani ◽  
Masayuki Asakawa ◽  
Tetsuo Hatsuda ◽  
Hiroshi Suzuki
Keyword(s):  
Gauge Theory ◽  
Equation Of State ◽  
Energy Momentum Tensor ◽  
Gradient Flow ◽  
Momentum Tensor
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