Kenichi Ishikawa

Last Updated :2026/06/18

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Associate Professor
E-mail
kishikahiroshima-u.ac.jp

Basic Information

Academic Degrees

  • Doctor of Science, Hiroshima University
  • Master of Science, Hiroshima University

Research Fields

  • Mathematical and physical sciences;Physics;Particle / Nuclear / Cosmic ray / Astro physics

Research Keywords

  • standard model
  • lattice QCD

Educational Activity

Course in Charge

  1. 2026, Undergraduate Education, Second Semester, Quantum Mechanics I
  2. 2026, Undergraduate Education, First Semester, Mathematics for Physics C
  3. 2026, Undergraduate Education, First Semester, Special Study for Graduation A
  4. 2026, Undergraduate Education, Second Semester, Special Study for Graduation B
  5. 2026, Undergraduate Education, First Semester, Special Lectures in Physics(Flavor physics and CP violation)
  6. 2026, Graduate Education (Master's Program) , 3Term, Lattice Quantum Chromodynamics
  7. 2026, Graduate Education (Master's Program) , First Semester, Special Lecture in Physics D
  8. 2026, Graduate Education (Master's Program) , First Semester, Exercise in Physics I
  9. 2026, Graduate Education (Master's Program) , Second Semester, Exercise in Physics II
  10. 2026, Graduate Education (Master's Program) , First Semester, Special Exsecise in Physics A
  11. 2026, Graduate Education (Master's Program) , Second Semester, Special Exsecise in Physics B
  12. 2026, Graduate Education (Master's Program) , Year, Special Research in Physics
  13. 2026, Graduate Education (Doctoral Program) , Year, Special Research in Physics

Research Activities

Academic Papers

  1. Universal features of chiral symmetry breaking in large-N QCD, JOURNAL OF HIGH ENERGY PHYSICS, 20260401
    Link to Paper Search Results by DOI
  2. Non-perturbative determination of meson masses and low-energy constants in large-N QCD, JOURNAL OF HIGH ENERGY PHYSICS, 20251212
    Link to Paper Search Results by DOI
  3. Method for high-precision determination of the nucleon axial structure using lattice QCD: Removing πN-state contamination, PHYSICAL REVIEW D, 112(7), 20251017
    Link to Paper Search Results by DOI
  4. Studies of nucleon isovector structure with the PACS10 superfine lattice, Proceedings of Science, PoS LATTICE2024 (2025), 318, 20250116
    Link to Paper Search Results by DOI
  5. Update of kaon semileptonic form factor using Nf=2+1 PACS10 configurations, Proceedings of Science, PoS LATTICE2024 (2025, 227, 20241209
    Link to Paper Search Results by DOI
  6. The gluino condensate of large-N SUSY Yang-Mills, Proceedings of Science, PoS LATTICE2024 (2025), 392, 20250110
    Link to Paper Search Results by DOI
  7. The perturbative computation of the gradient flow coupling for the twisted Eguchi--Kawai model with the numerical stochastic perturbation theory, Proceedings of Science, LATTICE2024 (2025), 362, 20250124
    Link to Paper Search Results by DOI
  8. Estimate of virtual photon polarization due to the intense magnetic field in Pb-Pb collisions at the LHC energies, Physics Letters B, 862, 20250119
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  9. The mass of the gluino-glue bound state in large-N N=1 Supersymmetric Yang-Mills theory, JOURNAL OF HIGH ENERGY PHYSICS, 20250321
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  10. Perturbative gradient flow coupling of the twisted Eguchi-Kawai model with the numerical stochastic perturbation theory, INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 40(06), 20250228
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  11. Estimate of virtual photon polarization due to the intense magnetic field in Pb-Pb collisions at the LHC energies, PHYSICS LETTERS B, 862, 202503
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  12. The chiral condensate at large N, Proceedings of Science, PoS LATTICE2023 (2024), 374, 20241106
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  13. |Vus| from kaon semileptonic form factor in Nf=2+1 QCD at the physical point on (10 fm)^4, Proceedings of Science, PoS LATTICE2023 (2024), 276, 20241106
    Link to Paper Search Results by DOI
  14. Discretization effects on nucleon root-mean-square radii from lattice QCD at the physical point, Proceedings of Science, PoS LATTICE2023 (2024), 323, 20241106
    Link to Paper Search Results by DOI
  15. Nonperturbative determination of the N=1 supersymmetric Yang-Mills gluino condensate at large N, PHYSICAL REVIEW D, 110(7), 20241010
    Link to Paper Search Results by DOI
  16. Nucleon form factors in Nf=2+1 lattice QCD at the physical point: Finite lattice spacing effect on the root-mean-square radii, Physical Review D, 109, 094505-094505, 20240510
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  17. The large-N limit of the chiral condensate from twisted reduced models, JOURNAL OF HIGH ENERGY PHYSICS, 20231205
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  18. Application of the symbolic regression program AI-Feynman to psychology, FRONTIERS IN ARTIFICIAL INTELLIGENCE, 6, 20230127
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  19. 102 PFLOPS lattice QCD quark solver on Fugaku, COMPUTER PHYSICS COMMUNICATIONS, 282, 20230101
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  20. Perturbative study of large N principal chiral model with twisted reduction, INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 37(36), 20221230
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  21. Kl3 form factors at the physical point: Toward the continuum limit, PHYSICAL REVIEW D, 106(9), 20221102
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  22. Nucleon isovector couplings in Nf=2+1 lattice QCD at the physical point, PHYSICAL REVIEW D, 106(9), 20221116
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  23. Scale setting for large-N SUSY Yang-Mills on the lattice, JOURNAL OF HIGH ENERGY PHYSICS, 20220712
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  24. Object-Oriented Implementation of Algebraic Multi-grid Solver for Lattice QCD on SIMD Architectures and GPU Clusters, Computational Science and Its Applications – ICCSA 2021: 21st International Conference, 218-233, 20210912
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  25. A thick-restart Lanczos type method for HermitianJ-symmetric eigenvalue problems, JAPAN JOURNAL OF INDUSTRIAL AND APPLIED MATHEMATICS, 38(1), 233-256, 202102
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  26. Calculation of the derivative of nucleon form factors in N-f=2+1 lattice QCD at M pi=138 MeV on a (5.5 fm)(3) volume, PHYSICAL REVIEW D, 104(7), 20211015
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  27. K(l3 )form factors at the physical point on a (10.9 fm)(3) volume, PHYSICAL REVIEW D, 101(9), 20200512
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  28. Finite size effect on pseudoscalar meson sector in 2+1 flavor QCD at the physical point, PHYSICAL REVIEW D, 99(1), 20190108
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  29. Numerical stochastic perturbation theory applied to the twisted Eguchi-Kawai model, JOURNAL OF HIGH ENERGY PHYSICS, 20190625
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  30. Finite size effect on vector meson and baryon sectors in 2+1 flavor QCD at the physical point, PHYSICAL REVIEW D, 100(9), 20191111
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  31. Construction of lattice Mobius domain wall fermions in the Schrodinger functional scheme, INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 33(1), 20180110
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  32. Multiple endpoints for improved MPI performance on a lattice QCD code, HPC Asia '18 Proceedings of Workshops of HPC Asia, 67-70, 20180131
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  33. Utility of geometry in lattice QCD simulations, PHYSICAL REVIEW D, 98(1), 20180731
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  34. Nucleon form factors on a large volume lattice near the physical point in 2+1 flavor QCD, PHYSICAL REVIEW D, 98(7), 20181017
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  35. Calculation of K -> pi pi decay amplitudes with an improved Wilson fermion action in a nonzero momentum frame in lattice QCD, PHYSICAL REVIEW D, 98(11), 20181220
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  36. Non-perturbative determination of the {Lambda}-parameter in the pure SU(3) gauge theory from the twisted gradient flow coupling, JOURNAL OF HIGH ENERGY PHYSICS, 20171213
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  37. OpenMP Tasking and MPI in a Lattice QCD Benchmark, Scaling OpenMP for Exascale Performance and Portability. IWOMP 2017. Lecture Notes in Computer Science, 10468, 77-91, 2017
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  38. Nontrivial center dominance in high temperature QCD, MODERN PHYSICS LETTERS A, 31(25), 20160820
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  39. First Application of Lattice QCD to Pezy-SC Processor, Procedia Computer Science, 80, 1418-1427, 2016
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  40. Study of quark mass dependence of binding energy for light nuclei in 2+1 flavor lattice QCD, PHYSICAL REVIEW D, 92(1), 20150701
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  41. IR fixed points in SU(3) gauge theories, PHYSICS LETTERS B, 748, 289-294, 20150902
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  42. Calculation of K -> pi pi decay amplitudes with improved Wilson fermion action in lattice QCD, PHYSICAL REVIEW D, 92(7), 20151007
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  43. Global structure of conformal theories in the SU(3) gauge theory, PHYSICAL REVIEW D, 89(11), 20140609
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  44. Conformal theories with an infrared cutoff, PHYSICAL REVIEW D, 87(7), 20130430
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  45. Charmed baryons at the physical point in 2+1 flavor lattice QCD, PHYSICAL REVIEW D, 87(9), 20130523
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  46. A NUMERICAL EVALUATION OF VACUUM POLARIZATION TENSOR IN CONSTANT EXTERNAL MAGNETIC FIELDS, INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 28(20), 20130810
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  47. Running coupling constant and mass anomalous dimension of six-flavor SU(2) gauge theory, PHYSICAL REVIEW D, 88(9), 20131118
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  48. Lattice study on quantum-mechanical dynamics of two-color QCD with six light flavors, PHYSICAL REVIEW D, 88(9), 20131118
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  49. 1+1+1 flavor QCD plus QED simulation at the physical point, PHYSICAL REVIEW D, 86(3), 20120827
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  50. Helium nuclei, deuteron, and dineutron in 2+1 flavor lattice QCD, PHYSICAL REVIEW D, 86(7), 20121019
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  51. Bound states of multi-nucleon channels in N_f=2+1 lattice QCD, Proceedings of Science, Lattice 2012, 143, 20121201
  52. Lattice study on two color QCD with six flavors of dynamical quarks, Proceedings of Science, Lattice 2012, 040, 20121201
  53. Multi-block/multi-core SSOR preconditioner for the QCD quark solver for K computer, Proceedings of Science, Lattice 2012, 188, 20121201
  54. Modified block BiCGSTAB for lattice QCD, COMPUTER PHYSICS COMMUNICATIONS, 183(1), 34-37, 201201
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  55. Lattice quantum chromodynamics at the physical point and beyond, PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2012
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  56. Electromagnetic form factor of pion from N-f=2+1 dynamical flavor QCD, JOURNAL OF HIGH ENERGY PHYSICS, 201104
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  57. Charm quark system at the physical point of 2+1 flavor lattice QCD, PHYSICAL REVIEW D, 84(7), 20111014
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  58. rho meson decay in 2+1 flavor lattice QCD, PHYSICAL REVIEW D, 84(9), 20111122
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  59. Running coupling constant of ten-flavor QCD with the Schrodinger functional method, PHYSICAL REVIEW D, 83(7), 20110426
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  60. Physical point simulation in 2+1 flavor lattice QCD, PHYSICAL REVIEW D, 81(7), 20100401
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  61. Non-perturbative renormalization of quark mass in N-f=2+1 QCD with the Schrodinger functional scheme, JOURNAL OF HIGH ENERGY PHYSICS, 201008
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  62. Domain Decomposition method on GPU cluster, Proceedings of Science, Lattice 2010, 036, 20101201
  63. Improving many flavor QCD simulations using multiple GPUs, Proceedings of Science, Lattice 2010, 325, 20101201
  64. Precise determination of the strong coupling constant in N-f=2+1 lattice QCD with the Schrodinger functional scheme, JOURNAL OF HIGH ENERGY PHYSICS, 200910
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  65. 2+1 flavor lattice QCD toward the physical point, PHYSICAL REVIEW D, 79(3), 200902
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  66. SU(2) and SU(3) chiral perturbation theory analyses on baryon masses in 2+1 flavor lattice QCD, PHYSICAL REVIEW D, 80(5), 200909
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  67. Two-flavor QCD simulation with exact chiral symmetry, PHYSICAL REVIEW D, 78(1), 200807
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  68. Light-quark masses from unquenched lattice QCD, PHYSICAL REVIEW D, 78(1), 200807
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  69. Lattice QCD calculation of the rho meson decay width, PHYSICAL REVIEW D, 76(9), 200711
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  70. Application of chiral perturbation theory to 2+1 flavor lattice QCD with O(a)-improved Wilson quarks, Proceedings of Science, LAT2007, 109, 20071001
  71. Light hadron spectrum with 2+1 flavor dynamical O(a)-improved Wilson quarks, Proceedings of Science, LAT2007, 138, 20071001
  72. Nonperturbative O(a) improvement of the Wilson quark action with the renormalization-group-improved gauge action using the Schrodinger functional method, PHYSICAL REVIEW D, 73(3), 200602
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  73. Lattice gauge action suppressing near-zero modes of H-W, PHYSICAL REVIEW D, 74(9), 200611
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  74. 2+1 Flavor Lattice QCD with Luescher's Domain-Decomposed HMC Algorithm, Proceedings of Science, LAT2006, 029, 20061001
  75. 2+1 flavor light hadron spectrum and quark masses with the O(a) improved Wilson-clover quark formalism, Proceedings of Science, LAT2006, 181, 20061001
  76. An application of the UV-filtering preconditioner to the Polynomial Hybrid Monte Carlo algorithm, Proceedings of Science, LAT2006, 027, 20061001
  77. JLQCD's dynamical overlap project, Proceedings of Science, LAT2006, 054, 20061001
  78. An estimate of the eta and eta-prime meson masses in Nf=2+1 lattice QCD, Proceedings of Science, LAT2006, 204, 20061001
  79. $\rho$ meson decay from the lattice, Proceedings of Science, LAT2006, 110, 20061001
  80. Mobility edge and locality of the overlap-Dirac operator with and without dynamical overlap fermions, Proceedings of Science, LAT2006, 060, 20061001
  81. Hadron spectrum from dynamical lattice QCD simulations, NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 140, 20-33, 200503
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  82. Light hadron spectrum in 2+1 flavor full QCD by CP-PACS and JLQCD Collaborations, NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 140, 225-227, 200503
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  83. I=2 pion scattering length from two-pion wave function, NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 140, 305-307, 200503
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  84. Charmed meson spectra and decay constants with one-loop O(a) improved relativistic heavy quark action, NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 140, 479-481, 200503
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  85. A scaling study of the step scaling function of quenched QCD with improved gauge actions, NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 140, 740-742, 200503
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  86. Nonperturbative O(a) improvement of Wilson quark action in three-flavor QCD with plaquette gauge action, PHYSICAL REVIEW D, 71(5), 200503
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  87. I=2 pion scattering length from two-pion wave functions, PHYSICAL REVIEW D, 71(9), 200505
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  88. Bulk first-order phase transition in three-flavor lattice QCD with O(a)-improved Wilson fermion action at zero temperature, PHYSICAL REVIEW D, 72(5), 200509
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  89. I=2 pi pi scattering phase shift with two flavors of O(a) improved dynamical quarks, PHYSICAL REVIEW D, 70(7), 200410
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  90. I=2 pion-pion scattering phase shift in the continuum limit calculated with two-flavor full QCD, NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 129, 191-193, 200403
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  91. Scaling study of the step scaling function in SU(3) gauge theory with improved gauge actions, PHYSICAL REVIEW D, 70(7), 200410
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  92. Lattice QCD calculation of the proton decay matrix element in the continuum limit, PHYSICAL REVIEW D, 70(11), 200412
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  93. $B^0-\bar{B}^0$ mixing in quenched lattice QCD, Physical Review D, 67, 014506-22, 20030401
  94. B meson B-parameters and the decay constant in two-flavor dynamical QCD, Nuclear Physics B (Proceedings Supplements), 106, 397-399, 20020401
  95. Non-trivial phase structure of $N_f=3$ QCD with $O(a)$-improved Wilson fermion at zero temperature, Nuclear Physics B (Proceedings Supplements), 106, 263-265, 20020401
  96. An exact algorithm for three-flavor QCD with $O(a)$-improved Wilson fermions, Nuclear Physics B (Proceedings Supplements), 106, 1079-1081, 20020401
  97. Exploration of sea quark effects in two-flavor QCD with the O(a)-improved Wilson quark action, Nuclear Physics B (Proceedings Supplemetns), 106, 224-226, 20020401
  98. One-loop renormalization of heavy-light currents, Nuclear Physics B (Proceedings Supplements), 106, 802-804, 20020401
  99. Charmonium Spectrum from Quenched Anisotropic Lattice QCD, Physical Review D, 65, 094508-29, 20020401
  100. Application of heavy-quark effective theory to lattice QCD. II. Radiative corrections to heavy-light currents, Physical Review D, 65, 094513-19,, 20020401
  101. ★, Polynomial Hybrid Monte Carlo algorithm for lattice QCD with an odd number of flavors, Physical Review D, 65, 094507-22, 20020401
  102. Perturbative renormalization of the $\Delta B=2$ four-quark operators in lattice NRQCD, Nuclear Physics B (Proceedings Supplements), 94, 354-358, 20010401
  103. Light hadron spectroscopy with two flavors of O(a) improved dynamical quarks, Nuclear Physics B (Proceedings Supplements), 94, 233-236, 20010401
  104. B^0-\bar{B}^0 mixing with quenched lattice NRQCD, Nuclear Physics B (Proceedings Supplements), 94, 379-382, 20010401
  105. Differential decay rate for $B \to \pi l \nu$ semileptonic decays, Nuclear Physics B (Proceedings Supplements), 94, 329-332, 20010401
  106. Differential decay rate of $B \to \pi l \nu$ semileptonic decay with lattice NRQCD, Physical Review D, 64, 114505-19, 20010401
  107. Light hadron spectroscopy with two flavors of O(a) improved dynamical quarks, NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 94, 233-236, 200103
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  108. ★, $B$ meson leptonic decay constant with quenched lattice NRQCD, Physical Review D, 61, 61, 074501-14, 20000401
  109. $O(\alpha_{s}a)$ matching coefficients for axial vector current and $\Delta B$$=$2 operator, Nuclear Physics B (Proceedings Supplements), 83-84, 301-303, 20000401
  110. A lattice NRQCD computation of the bag parameters for $\Delta B$ = 2 operators, Nuclear Physics B (Proceedings Supplements), 83-84, 340-342, 20000401
  111. $B \to \pi l\bar{\nu}$ Form Factors with NRQCD Heavy Quark and Clover Light Quark Actions, Nuclear Physics B (Proceedings Supplements), 83-84, 325-327, 20000401
  112. Width difference in the $B_s$-$\bar{B}_s$ system with lattice NRQCD, Physical Review D, 62, 034504-8, 20000401
  113. ★, Renormalization of the \Delta B=2 four-quark operators in lattice NRQCD, Physical Review D, 62, 114502-22, 20000401
  114. B meson leptonic decay constant with quenched lattice NRQCD, PHYSICAL REVIEW D, 61(7), 20000401
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  115. Scaling behavior of $f_{B}$ with NRQCD, Nuclear Physics B (Proceedings Supplements), 73, 363-365, 19990401
  116. Preliminary study of $B_B$ parameter using Lattice NRQCD, Nuclear Physics B (Proceedings Supplements), 73, 354-356, 19990401
  117. $O(a\alpha_s)$ matching coefficients for the $\Delta B$=2 operators in the lattice static theory, Physical Review D, 60, 034501-8, 19990401
  118. Lattice NRQCD calculation of the $B^0$-$\bar{B}^0$ mixing parameter $B_B$, Physical Review D, 60, 094503-10, 19990401
  119. Dynamical Symmetry Breaking in Compact Flat Spaces, Progress of Theoretical Physics, 237-255, 19980401
  120. NRQCD Results on Form Factors, Nuclear Physics B (Proceedings Supplements), 60A, 141-149, 19980401
  121. Perturbative renormalization parameters for heavy quarks, Nuclear Physics B (Proceedings Supplements), 63A-C, 344-346, 19980401
  122. A study of $O(1/m_{Q}^{2})$ corrections for $f_{B}$ with lattice NRQCD, Nuclear Physics B (Proceedings Supplements), 63A-C, 350-352, 19980401
  123. Heavy quark mass dependence of semileptonic form factors for B decays, Nuclear Physics B (Proceedings Supplements), 63A-C, 380-382, 19980401
  124. First study of $B \to \pi$ semileptonic decay form factors using NRQCD, Nuclear Physics B (Proceedings Supplements), 63A-C, 368-370, 19980401
  125. Lattice study of $B\rightarrow \pi$ semileptonic decay using nonrelativistic lattice QCD, Physical Review D, 58, 014502-17, 19980401
  126. Thermal and curvature effects to dynamical symmetry breaking, Physical Review D, 56, 5097-5107, 19970401
  127. f_B with lattice NRQCD including O(1/m_Q^2) corrections, Physical Review D, 56, 7028-7038, 19970401
  128. Curvature Induced Dynamical Symmetry Restoration in Einstein Universe ($R \otimes S^{D-1}$), Modern Physics Letters A, 11, 939-948, 19960401
  129. Exact Solution of the Equation for Spinor Two-Point Functions in Einstein Universe, Progress of Theoretical Physics, 96, 847-852, 19960401
  130. 27pRB-1 The aim of this symposium session, Meeting abstracts of the Physical Society of Japan, 68(1), 20130326
  131. 27pRB-1 The aim of this symposium session, Meeting abstracts of the Physical Society of Japan, 68(1), 20130326
  132. Mixed Precision Solver Scalable to 16000 MPI Processes for Lattice Quantum Chromodynamics Simulations on the Oakforest-PACS System, 2017 Fifth International Symposium on Computing and Networking (CANDAR) (2017) Aomori, 362-368
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Invited Lecture, Oral Presentation, Poster Presentation

  1. Study of the Standard Model of elementary particles through lattice gauge theories and large N gauge theories, 2026/03/03, With Invitation, Japanese
  2. Meson masses of the large N QCD from the twisted Eguchi-Kawai model, Ken-Ichi Ishiakwa, Claudio Bonanno, Margarita García Peréz, Antonio González-Arroyo, Masanori Okawa, 2026/01/13, Without Invitation, Japanese
    Related URL
  3. Recent update of nucleon axial-vector charge with the PACS10 superfine lattice, Masato Nagatsuka, Yasumichi Aoki, Ken-Ichi Ishikawa, Yoshinobu Kuramashi, Shoichi Sasaki, Kohei Sato, Eigo Shintani, Ryutaro Tsuji, Hiromasa Watanabe, Takeshi Yamazaki, 42nd International Symposium on Lattice Field Theory (Lattice 2025), 2025/11/05, Without Invitation, English, Tata Institute of Fundamental Research, Mumbai, India
  4. Meson spectrum and low-energy constants in large-N QCD, Claudio Bonann, Margarita García Pérez, Antonio González-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa, 42nd International Symposium on Lattice Field Theory (Lattice 2025), 2025/11/04, Without Invitation, English, Tata Institute of Fundamental Research, Mumbai, India
  5. Nonperturbative determination of the N=1 supersymmetric Yang-Mills gluino condensate at large N, Ken-Ichi Ishikawa, Claudio Bonanno, Pietro Butti, Margarita Garcia Perez, Antonio Gonzalez-Arroyo, Masanori Okawa, 2025/01/08, Without Invitation, Japanese
  6. Numerical study of large N gauge theory using matrix model, Ken-Ichi Ishikawa, Masanori Okawa, 2024/10/24, Without Invitation, Japanese
    Related URL
  7. The gluino condensate of large-$N$ SUSY Yang–Mills, Claudio Bonanno, Pietro Butti, Margarita García Pérez, Antonio González-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa, The 41st Lattice Conference (Lattice 2024), 2024/08/02, Without Invitation, English, the University of Liverpool, United Kingdom
  8. Update of kaon semileptonic form factor using $N_f=2+1$ PACS10 configurations, Takeshi Yamazaki, Ken-ichi Ishikawa, Naruhito Ishizuka, Yoshinobu Kuramashi, Yusuke Namekawa, Yusuke Taniguchi, Naoya Ukita for PACS Collaboration, The 41st Lattice Conference (Lattice 2024), 2024/07/30, Without Invitation, English, the University of Liverpool, United Kingdom
  9. A proposal for removing $\pi N$-state contamination from the nucleon induced pseudoscalar form factor in lattice QCD, Sasaki, Shoichi, Aoki, Yasumichi and Ishikawa, Ken-Ichi and Kuramashi, Yoshinobu and Sato, Kohei and Shintani, Eigo and Tsuji, Ryutaro and Watanabe, Hiromasa and Yamazaki, Takeshi, The 41st Lattice Conference (Lattice 2024), 2024/07/29, Without Invitation, English, the University of Liverpool, United Kingdom
  10. The chiral condensate at large N from twisted reduced models, 2023/12/18, Without Invitation, Japanese
  11. Wilson-Clover quark solver implementation on the supercomputer Fugaku, Ken-Ichi Ishikawa, Large-scale lattice QCD simulation and application of machine learning, 2023/11/24, With Invitation, English
  12. Fast computing matrix function in numerical stochastic perturbation theory, Yingbo Ji, Antonio Gonzalez-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa, CCP2023 - 34th IUPAP Conference on Computational Physics, 2023/08/08, Without Invitation, English
  13. Cayley transformation for unitary matrix model in Numerical Stochastic Perturbation Theory, Hironori Takei, Ken-Ichi Ishikawa, Yingbo Ji, CCP2023 - 34th IUPAP Conference on Computational Physics, 2023/08/07, Without Invitation, English
  14. |Vus| from kaon semileptonic form factor in Nf=2+1 QCD at the physical point on (10 fm)^4, Takeshi Yamazaki, Ken-Ichi Ishikawa, Naruhito Ishizuka, Yoshinobu Kuramashi, Yusuke Namekawa, Yusuke Taniguchi, Naoya Ukita, Tomoteru Yoshie, the 40th international conference on lattice field theory. Lattice 2023, 2023/08/03, Without Invitation, English
  15. Discretization effects on nucleon root-mean-square radii from lattice QCD at the physical point, Ryutaro Tsuji, Ken-Ichi Ishikawa, Eigo Shintani, Yasumichi Aoki, Yoshinobu Kuramashi, Shoichi Sasaki, Takeshi Yamazaki, the 40th international conference on lattice field theory. Lattice 2023, 2023/08/01, Without Invitation, English
  16. The chiral condensate at large N, Claudio Bonanno, Pietro Butti, Margarita Garcia-Perez, Antonio Gonzalez-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa, The 40th international conference on lattice field theory. Lattice 2023, 2023/07/31, Without Invitation, English
  17. Multgird solver for Lattice QCD on Fugaku, Issaku Kanamoari, Issaku Kanamoari, Ken-Ichi Ishikawa and Hideo Matsufuru, The 4th R-CCS International symposium (Feb. 7-8, 2022), 2022/02/08, Without Invitation, English
  18. Numerical stochastic perturbation theory for twisted reduced principal chiral model, Yingbo Ji, Yingbo Ji, K.-I.Ishikawa, Frontiers in Astroparticle Physics Workshop, IIT Bombay + Hiroshima University, 2021/10/26, Without Invitation, English
  19. Nucleon isovector tensor charge from lattice QCD with physical light quarks, Ryutaro Tsuji, Ryutaro Tsuji, Yasumichi Aoki, Ken-Ichi Ishikawa, Yoshinobu Kuramashi, Shoichi Sasaki, Eigo Shintani, Takeshi Yamazaki, the 24th International Spin Symposium, 2021/10/19, Without Invitation, English
  20. Object-oriented implementation of algebraic multi-grid solver for lattice QCD on SIMD architectures and GPU clusters, Issaku Kanamori, Issaku Kanamori, Ken-Ichi Ishikawa, Hideo Matsufuru, The 21st International Conference on Computational Science and Its Applications, ICCSA 2021, 2021/09/15, Without Invitation, Japanese
  21. Multigrid Solver on Fugaku, Issaku Kanamori, Ken-Ichi Ishikawa, Issaku Kanamori, Hideo Matsufuru, the 38th International Symposium on Lattice Field Theory (Lattice 2021), 2021/07/28, Without Invitation, English
  22. Scale setting for N=1 SUSY Yang-Mills at large-N through volume-reduced twisted matrix model, Pietro Butti, Pietro Butti, Margarita García Pérez, Antonio González-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa, the 38th International Symposium on Lattice Field Theory (Lattice 2021), 2021/07/27, Without Invitation, English
  23. Large N simulation of the twisted reduced matrix model with an adjoint Majorana fermion, Ken-Ichi Ishikawa, Pietro Butti, Margarita García Pérez, Antonio González-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa, the 38th International Symposium on Lattice Field Theory (Lattice 2021), 2021/07/26, Without Invitation, English
  24. Calculation of kaon semileptonic form factor with the PACS10 configuration, Takeshi Yamazaki, Takeshi Yamazaki, Ken-ichi Ishikawa, Naruhito Ishizuka, Yoshinobu Kuramashi, Yoshifumi Nakamura, Yusuke Namekawa, Yusuke Taniguchi, Naoya Ukita, Tomoteru Yoshié for PACS Collaboration, the 38th International Symposium on Lattice Field Theory (Lattice 2021), 2021/07/26, Without Invitation, English
  25. The lower moments of nucleon structure functions in lattice QCD with physical quark masses, Ryutaro Tsuji, Ryutaro Tsuji, Yasumichi Aoki, Ken-Ichi Ishikawa, Yoshinobu Kuramashi, Shoichi Sasaki, Eigo Shintani, Takeshi Yamazaki (for PACS Collaboration), the 38th International Symposium on Lattice Field Theory (Lattice 2021), 2021/07/26, Without Invitation, English

Awards

  1. 2017/11/20, LHAM Best Paper, CANDAR, Mixed Precision Solver Scalable to 16000 MPI Processes for Lattice Quantum Chromodynamics Simulations on the Oakforest-PACS System

External Funds

Acceptance Results of Competitive Funds

  1. KAKENHI, 2012, 2014
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  2. KAKENHI, Direct Detection of Chiral Magnetic Field Production viaVirtual Photon Polarization Measurement, 2011, 2012
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  3. KAKENHI, Comprehensive research on the structure of matter in the strong interactions based on QCD, 2010, 2012
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  4. KAKENHI, vacuum structure and quark dynamics based on quantum chromodynamics, 2008, 2012
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  5. KAKENHI, Interdisciplinary algorithms and computer simulations, 2008, 2012
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  6. KAKENHI, Accelerating lattice QCD computations using general purpose graphic cards, 2008, 2010
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  7. KAKENHI, Computational Particle Physics with Massively Parallel Cluster Computer, 2006, 2010
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  8. KAKENHI, 2004, 2006
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  9. KAKENHI, Study of K meson decay amplitudes from the lattice QCD, 2011, 2013
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  10. KAKENHI, 2016, 2018

Social Activities

Organizing Academic Conferences, etc.

  1. 2003/07
  2. 2012/03
  3. The 33rd International Symposium on Lattice Field Theory, Lattice 2015