468 citations · 2.9k across the 108 of their papers we have counts for
105 papers · 1 filter
Bridge++ 2.0: Benchmark results on supercomputer Fugaku
Tatsumi Aoyama, Issaku Kanamori, Kazuyuki Kanaya +2
Bridge++ is a general-purpose code set for lattice QCD simulations aiming at a readable, extensible, and portable code while keeping practical high performance. The new version 2.0…
Phase structure and critical point in heavy-quark QCD at finite temperature
Kazuyuki Kanaya, Ryo Ashikawa, Shinji Ejiri +3
We study phase structure and critical point of finite-temperature QCD in the heavy-quark region applying the hopping parameter expansion (HPE). We first study finite-size scaling o…
Scope and convergence of the hopping parameter expansion in finite temperature QCD with heavy quarks around the critical point
Naoki Wakabayashi, Shinji Ejiri, Kazuyuki Kanaya +1
Hopping parameter expansion is a useful tool to investigate heavy dynamical quarks in lattice QCD, while the range of its applicability has been sometimes questioned. We study the…
General purpose lattice QCD code set Bridge++ 2.0 for high performance computing
Yutaro Akahoshi, Sinya Aoki, Tatsumi Aoyama +6
Bridge++ is a general-purpose code set for a numerical simulation of lattice QCD aiming at a readable, extensible, and portable code while keeping practically high performance. The…
Latent heat and pressure gap at the first-order deconfining phase transition of SU(3) Yang-Mills theory using the small flow-time expansion method
Kazuyuki Kanaya, Mizuki Shirogane, Shinji Ejiri +5
We study the latent heat and the pressure gap between the hot and cold phases at the first-order transition temperature of SU(3) Yang-Mills theory, using the small flow-tim…
Finite-size scaling around the critical point in the heavy quark region of QCD
Atsushi Kiyohara, Masakiyo Kitazawa, Shinji Ejiri +1
Finite-size scaling is investigated in detail around the critical point in the heavy-quark region of nonzero temperature QCD. Numerical simulations are performed with large spatial…
Latent heat and pressure gap at the first-order deconfining phase transition of SU(3) Yang-Mills theory using the small flow-time expansion method
Mizuki Shirogane, Shinji Ejiri, Ryo Iwami +5
We study latent heat and the pressure gap between the hot and cold phases at the first-order deconfining phase transition temperature of the SU(3) Yang-Mills theory. Performing sim…
Four quark operators for kaon bag parameter with gradient flow
Asobu Suzuki, Yusuke Taniguchi, Hiroshi Suzuki +1
To study the CP-violation using the oscillation, we need the kaon bag parameter which represents QCD corrections in the leading Feynman diagrams. The lattice QCD pr…
Nf=2+1 QCD thermodynamics with gradient flow using two-loop matching coefficients
Yusuke Taniguchi, Shinji Ejiri, Kazuyuki Kanaya +3
We study thermodynamic properties of Nf=2+1 QCD on the lattice adopting O(a)-improved Wilson quark action and Iwasaki gauge action. To cope with the problems due to explicit violat…
Calculation of PCAC mass with Wilson fermion using gradient flow
Atsushi Baba, Shinji Ejiri, Kazuyuki Kanaya +5
We calculate the PCAC mass for flavor full QCD with Wilson-type quarks. We adopt the Small Flow-time eXpansion (SFtX) method based on the gradient flow which provides us a…
Determination of the endpoint of the first order deconfiniement phase transition in the heavy quark region of QCD
Shinji Ejiri, Shota Itagaki, Ryo Iwami +6
We study the endpoint of the first order deconfinement phase transition of 2 and 2+1 flavor QCD in the heavy quark region. We perform simulations of quenched QCD and apply the rewe…
End point of the first-order phase transition of QCD in the heavy quark region by reweighting from quenched QCD
Shinji Ejiri, Shota Itagaki, Ryo Iwami +5
We study the end point of the first-order deconfinement phase transition in two and 2+1 flavor QCD in the heavy quark region of the quark mass parameter space. We determine the loc…
Study of 2+1 flavor finite-temperature QCD using improved Wilson quarks at the physical point with the gradient flow
Kazuyuki Kanaya, Atsushi Baba, Asobu Suzuki +5
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 co…
Measuring of chiral susceptibility using gradient flow
Atsushi Baba, Shinji Ejiri, Kazuyuki Kanaya +6
In lattice QCD with Wilson-type quarks, the chiral symmetry is explicitly broken by the Wilson term on finite lattices. Though the symmetry is guaranteed to recover in the continuu…
Study of energy-momentum tensor correlation function in full QCD for QGP viscosities
Yusuke Taniguchi, Atsushi Baba, Shinji Ejiri +6
We study correlation functions of the energy-momentum tensor (EMT) in -flavor full QCD to evaluate QGP viscosities. We adopt nonperturbatively improved Wilson fermion and Iw…
Equation of state near the first order phase transition point of SU(3) gauge theory using gradient flow
Mizuki Shirogane, Shinji Ejiri, Ryo Iwami +5
We study energy gap (latent heat) between the hot and cold phases at the first order phase transition point of the SU(3) gauge theory. Performing simulations on lattices with vario…
Energy-momentum tensor correlation function in Nf=2+1 full QCD at finite temperature
Yusuke Taniguchi, Shinji Ejiri, Kazuyuki Kanaya +4
We measure correlation functions of the nonperturbatively renormalized energy-momentum tensor in full QCD at finite temperature by applying the gradient flow method both…
Determination of latent heat at the finite temperature phase transition of SU(3) gauge theory
Shinji Ejiri, Ryo Iwami, Mizuki Shirogane +6
We calculate the energy gap (latent heat) and pressure gap between the hot and cold phases of the SU(3) gauge theory at the first order deconfining phase transition point. We perfo…
Temperature dependence of topological susceptibility using gradient flow
Yusuke Taniguchi, Shinji Ejiri, Kazuyuki Kanaya +5
We study temperature dependence of the topological susceptibility with the flavors Wilson fermion. We have two major interests in this paper. One is a comparison of glu…
Topological susceptibility in finite temperature (2+1)-flavor QCD using gradient flow
Yusuke Taniguchi, Kazuyuki Kanaya, Hiroshi Suzuki +1
We compute the topological charge and its susceptibility in finite temperature (2+1)-flavor QCD on the lattice applying a gradient flow method. With the Iwasaki gauge action and no…
Equation of state in (2+1)-flavor QCD with gradient flow
Kazuyuki Kanaya, Shinji Ejiri, Ryo Iwami +5
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…
Exploring Nf=2+1 QCD thermodynamics from the gradient flow
Yusuke Taniguchi, Shinji Ejiri, Ryo Iwami +5
The energy-momentum tensor plays an important role in QCD thermodynamics. Its expectation value contains information of the pressure and the energy density as its diagonal part. Fu…
Latent heat at the first order phase transition point of SU(3) gauge theory
Mizuki Shirogane, Shinji Ejiri, Ryo Iwami +2
We calculate the energy gap (latent heat) and pressure gap between the hot and cold phases of the SU(3) gauge theory at the first order deconfining phase transition point. We perfo…
Thermodynamics in 2+1 flavor QCD with improved Wilson quarks by the fixed scale approach
T. Umeda, S. Aoki, S. Ejiri +4
We study thermodynamic properties of 2+1 flavor QCD with improved Wilson quarks coupled with the RG improved Iwasaki glue, using the fixed scale approach. We present the results fo…