Dr. Y. Koma's Publication Lists

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News

  • Precise determination of the three-quark potential in SU(3) lattice gauge theory
    Y. Koma, M. Koma
    Phys. Rev. D95 (2017) 094513-(1--20)
    (arXiv:1703.06247[hep-lat])

  • 重いクォーク物理の進展 ―QCDと量子力学系ポテンシャルの対応―
    駒 佳明,駒 美保
    日本物理学会誌 vol. 67 No. 5 (2012) 325--332

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    Papers published in Refereed Journals

    1. Gauge invariance of color confinement due to the dual Meissner effect caused by Abelian monopoles
      T. Suzuki, M. Hasegawa, K. Ishiguro, Y. Koma, T. Sekido
      Phys. Rev. D80 (2009) 054504-(1--11)
      (arXiv:0907.0583[hep-lat])

    2. Gauge-independent Abelian mechanism of color confinement in gluodynamics
      T. Suzuki, K. Ishiguro, Y. Koma, T. Sekido
      Phys. Rev. D77 (2008) 034502-(1--5)
      (arXiv:0706.4366[hep-lat])

    3. Exploring the structure of the quenched QCD vacuum with overlap fermions
      E.-M. Ilgenfritz, K. Koller, Y. Koma, G. Schierholz, T. Streuer, V. Weinberg
      Phys. Rev. D76 (2007) 034506-(1--31)
      (arXiv:0705.0018[hep-lat])

    4. Abelian dominance and the dual Meissner effect in local unitary gauges in SU(2) gluodynamics
      T. Sekido, K. Ishiguro, Y. Koma, Y. Mori, T. Suzuki
      Phys. Rev. D76 (2007) 031501-(1--5) (Rapid Communication)
      (hep-lat/0703002)

    5. Spin-dependent potentials from lattice QCD
      Y. Koma, M. Koma
      Nucl. Phys. B769 (2007) 79--107
      (hep-lat/0609078)

    6. Nonperturbative determination of the QCD potential at O(1/m)
      Y. Koma, M. Koma, H. Wittig
      Phys. Rev. Lett. 97 (2006) 122003-(1--4)
      (hep-lat/0607009)

    7. Finite temperature QCD with two flavors of nonperturbatively improved Wilson fermions
      V.G. Bornyakov, M.N. Chernodub, H. Ichie, Y. Koma, Y. Mori, Y. Nakamura, M.I. Polikarpov, G. Schierholz, A.A. Slavnov, H. Stueben, T. Suzuki, P.V. Uvarov, A.I. Veselov
      Phys. Rev. D71 (2005) 114504-(1--14)
      (hep-lat/0401014)

    8. On the finite size mass shift formula for stable particles
      Y. Koma, M. Koma
      Nucl. Phys. B713 (2005) 575--579
      (hep-lat/0406034)

    9. Dynamics of monopoles and flux tubes in two-flavor dynamical QCD
      V.G. Bornyakov, H. Ichie, Y. Koma, Y. Mori, Y. Nakamura, D. Pleiter, M.I. Polikarpov, G. Schierholz, T. Streuer, H. Stueben, T. Suzuki
      Phys. Rev. D70 (2004) 074511-(1--15)
      (hep-lat/0310011)

    10. Profiles of the broken string in two-flavor QCD below and above the finite temperature transition
      V.G. Bornyakov, M.N. Chernodub, H. Ichie, Y. Koma, Y. Mori, M.I. Polikarpov, G. Schierholz, H. Stueben, T. Suzuki
      Prog. Theor. Phys. 112 (2004) 307--324
      (hep-lat/0401027)

    11. The static potential, force and flux-tube profile in 4D compact U(1) lattice gauge theory with the multi-level algorithm
      Y. Koma, M. Koma, P. Majumdar
      Nucl. Phys. B692 (2004) 209--231
      (hep-lat/0311016)

    12. Glueball masses in 4D U(1) lattice gauge theory using the multi-level algorithm
      P. Majumdar, Y. Koma, M. Koma
      Nucl. Phys. B677 (2004) 273--288
      (hep-lat/0309003)

    13. Detailed study of the Abelian-projected SU(2) flux tube and its dual Ginzburg-Landau analysis
      Y. Koma, M. Koma, E.-M. Ilgenfritz, T. Suzuki
      Phys. Rev. D68 (2003) 114504-(1--17)
      (hep-lat/0308008)

    14. Duality of gauge field singularities and the structure of the flux tube in Abelian-projected SU(2) gauge theory and the dual Abelian Higgs model
      Y. Koma, M. Koma, E.-M. Ilgenfritz, T. Suzuki, M.I. Polikarpov
      Phys. Rev. D68 (2003) 094018-(1--11)
      (hep-lat/0302006)

    15. Generalized flux-tube solution in Abelian-projected SU(N) gauge theory
      Y. Koma
      Phys. Rev. D66 (2002) 114006-(1--6)
      (hep-ph/0208066)

    16. Effective string action for the U(1)xU(1) dual Ginzburg-Landau theory beyond the London limit
      Y. Koma, M. Koma, D. Ebert, H. Toki
      Nucl. Phys. B648 (2003) 189--202
      (hep-th/0206074)

    17. Systematics of flux tubes in the dual Ginzburg-Landau theory and Casimir scaling hypothesis: folklore and lattice facts
      Y. Koma, M. Koma
      Euro. Phys. J. C26 (2003) 457--460
      (hep-ph/0109033)

    18. Towards the string representation of the dual Abelian Higgs model beyond the London limit
      Y. Koma, M. Koma, D. Ebert, H. Toki
      JHEP 08 (2002) 047-(0--13)
      (hep-th/0108138)

    19. Casimir scaling in a dual superconducting scenario of confinement
      Y. Koma, E.-M. Ilgenfritz, H. Toki, T. Suzuki
      Phys. Rev. D64 (2001) 011501-(1--5) (Rapid Communication)
      (hep-ph/0103162)

    20. Weyl symmetric representation of hadronic flux tubes in the dual Ginzburg-Landau theory
      Y. Koma, E.-M. Ilgenfritz, T. Suzuki, H. Toki
      Phys. Rev. D64 (2001) 014015-(1--19)
      (hep-ph/0011165)

    21. Weyl invariant formulation of flux-tube solution in the dual Ginzburg-Landau theory
      Y. Koma, H. Toki
      Phys. Rev. D62 (2000) 054027-(1--6)
      (hep-ph/0004177)

    22. Flux-tube ring and glueball properties in the dual Ginzburg-Landau theory
      Y. Koma, H. Suganuma, H. Toki
      Phys. Rev. D60 (1999) 074024-(1--9)
      (hep-ph/9902441)

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    Preprint

    1. More on the finite size mass shift formula for stable particles
      Y. Koma, M. Koma
      (hep-lat/0504009)

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    Proceedings of International Conferences

    1. The static three-quark potential of various quark configurations
      M. Koma, Y. Koma
      LATTICE 2015, Kobe International Conference Center, Kobe, Japan, 14 - 18 July 2015
      Proc. Sci. LAT2015 (2015) 324-(1--7)

    2. The static three-quark potential from the Polyakov loop correlation function
      Y. Koma, M. Koma
      LATTICE 2014, Columbia Univ., New York, USA, 23 - 28 June 2014
      Proc. Sci. LAT2014 (2014) 352-(1--7)

    3. The static potential from the selected intermediate states of gluons
      Y. Koma, M. Koma
      LATTICE 2013, Universitaet Mainz, Mainz, Germany, 29 July - 3 Aug 2013
      Proc. Sci. LAT2013 (2013) 469-(1--7)

    4. Heavy quark potential and quarkonium spectrum with nonperturbative pNRQCD
      Y. Koma, M. Koma
      The 20th International IUPAP Conference on Few-Body Problems in Physics (FB20), Fukuoka, Japan, 20-25 Aug 2012
      Few-Body Systems, Volume 54, Issue 7-10 (2013) 1027--1031

    5. Heavy quarkonium spectroscopy in pNRQCD with lattice QCD input
      Y. Koma, M. Koma
      LATTICE 2012, Cairns, Australia, 24-30 June 2012
      Proc. Sci. LAT2012 (2012) 140-(1--7)
      (1211.6795[hep-lat])

    6. Momentum dependence of the topological susceptibility with overlap fermions
      Y. Koma, E.-M. Ilgenfritz, K. Koller, M. Koma, G. Schierholz, T. Streuer, V. Weinberg
      LATTICE 2010, Villasimius, Sardinia, Italy, 14-19 June 2010
      Proc. Sci. LAT2010 (2010) 278-(1--7)
      (1012.1383[hep-lat])

    7. Heavy quark potentials derived from lattice QCD
      Y. Koma, M. Koma
      Chiral10 WORKSHOP, Valencia, Spain, 21-24 June 2010
      AIP Conference Proceedings 1322 (2010) 298--306

    8. Heavy quark potential in lattice QCD
      Y. Koma, M. Koma
      New Frontiers in QCD 2010 (Exotic Hadron Systems and Dense Matter), Yukawa Institute for Theoretical Physics, Kyoto University, Feb 4-5, 2010
      Prog. Theor. Phys. Suppl. 186 (2010) 205--210

    9. Topological structure of the QCD vacuum revealed by overlap fermions
      E.-M. Ilgenfritz, K. Koller, Y. Koma, G. Schierholz, V. Weinberg
      HLRB, KONWIHR and Linux-Cluster: Review, Results and Future Projects Workshop, Leibniz Rechenzentrum Munich, Germany, Dec 2009
      High Performance Computing in Science and Engineering, Garching/Munich 2009
      (Springer-Verlag Berlin Heidelberg, 2010) Part 5, 475-487
      (0912.2281[hep-lat])

    10. Scaling study of the relativistic corrections to the static potential
      Y. Koma, M. Koma
      LATTICE 2009, Beijing University, Beijing, China, 25-31 July 2009
      Proc. Sci. LAT2009 (2009) 122-(1--8)
      (0911.3204[hep-lat])

    11. Gauge invariance of the color confinement mechanism due to the Abelian dual Meissner effect
      K. Ishiguro, M. Hasegawa, Y. Koma, T. Sekido, T. Suzuki
      LATTICE 2009, Beijing University, Beijing, China, 25-31 July 2009
      Proc. Sci. LAT2009 (2009) 238-(1--8)

    12. Determination of the relativistic corrections to the static inter-quark potential from lattice QCD
      M. Koma, Y. Koma, H. Wittig
      Confinement VIII, Universitaet Mainz, Mainz, Germany, 1-6 Sept 2008
      Proc. Sci. Confinement8 (2008) 105-(1--5)

    13. Momentum dependence of the topological susceptibility and its derivative at zero momentum with overlap fermion
      Y. Koma
      Confinement VIII, Universitaet Mainz, Mainz, Germany, 1-6 Sept 2008
      Proc. Sci. Confinement8 (2008) 155-(1--2)

    14. Relativistic corrections to the heavy quark potential at O(1/m) and O(1/m^2)
      Y. Koma, M. Koma, H. Wittig
      LATTICE 2007, Universitaet Regensburg, Regensburg, Germany, 30 July - 4 Aug 2007
      Proc. Sci. LAT2007 (2007) 111-(1--10)
      (0711.2322[hep-lat])

    15. Study of the structure of the QCD vacuum with valence overlap fermions and monopoles
      T. Sekido, K. Ishiguro, T. Suzuki, Y. Nakamura, Y. Koma, G. Schierholz
      LATTICE 2007, Universitaet Regensburg, Regensburg, Germany, 30 July - 4 Aug 2007
      Proc. Sci. LAT2007 (2007) 330-(1--7)

    16. Gauge independence of Abelian confinement mechanism in SU(2) gluodynamics
      T. Suzuki, K. Ishiguro, Y. Koma, T. Sekido
      LATTICE 2007, Universitaet Regensburg, Regensburg, Germany, 30 July - 4 Aug 2007
      Proc. Sci. LAT2007 (2007) 335-(1--7)

    17. Localization of overlap modes and topological charge, vortices and monopoles in SU(3) LGT
      E.-M. Ilgenfritz, K. Koller, Y. Koma, G. Schierholz, T. Streuer, V. Weinberg, M. Quandt
      LATTICE 2007, Universitaet Regensburg, Regensburg, Germany, 30 July - 4 Aug 2007
      Proc. Sci. LAT2007 (2007) 311-(1--7)
      (0710.2607[hep-lat])

    18. The Chiral transition on a 24**3 x 10 lattice with N(f) = 2 clover sea quarks studied by overlap valence quarks
      V. Weinberg, E.-M. Ilgenfritz, K. Koller, Y. Koma, Y. Nakamura, G. Schierholz, T. Streuer
      LATTICE 2007, Universitaet Regensburg, Regensburg, Germany, 30 July - 4 Aug 2007
      Proc. Sci. LAT2007 (2007) 236-(1--7)
      (0710.2565[hep-lat])

    19. Vacuum structure as seen by overlap fermions
      E.-M. Ilgenfritz, K. Koller, Y. Koma, G. Schierholz, T. Streuer, V. Weinberg
      Confinement VII, Ponta Delgada, Azores, Portugal, 2-7 Sept 2006
      AIP Conference Proceedings 892 (2007) 187--190
      (hep-lat/0611007)

    20. The QCD vacuum probed by overlap fermions
      E.-M. Ilgenfritz, K. Koller, Y. Koma, G. Schierholz, T. Streuer, V. Weinberg
      LATTICE 2006, Tucson, Arizona, USA, 23-28 July 2006
      Proc. Sci. LAT2006 (2006) 078-(1--7)
      (hep-lat/0610087)

    21. Non-leptonic kaon decays and the chiral regime of the strong interaction
      L. Giusti, P. Hernandez, M. Koma, Y. Koma, M. Laine, S. Necco, C. Pena, J. Wennekers, H. Wittig
      NIC Symposium 2006, 1--2 Mar 2006, Juelich, Germany
      NIC Series 32 (2006) 117--125
      (book)

    22. Probing the topological structure of the QCD vacuum with overlap fermions
      E.-M. Ilgenfritz, K. Koller, Y. Koma, G. Schierholz, T. Streuer, V. Weinberg
      International Workshop on Computational Hadron Physics, Nicosia, Cyprus, 14-17 Sept 2005
      Nucl. Phys. B (Proc. Suppl.) 153 (2006) 328--335
      (hep-lat/0512005)

    23. Determination of spin-dependent potentials with the multi-level algorithm
      M. Koma, Y. Koma, H. Wittig
      LATTICE 2005, Trinity College, Dublin, Ireland, 25-30 July 2005
      Proc. Sci. LAT2005 (2005) 216-(1--6)
      (hep-lat/0510059)

    24. Probing the chiral phase transition of Nf=2 Clover fermions with valence overlap fermions
      V. Weinberg, E.-M. Ilgenfritz, K. Koller, Y. Koma, G. Schierholz, T. Streuer
      LATTICE 2005, Trinity College, Dublin, Ireland, 25-30 July 2005
      Proc. Sci. LAT2005 (2005) 171-(1--6)
      (hep-lat/0510056)

    25. Localization properties of the topological charge density and the low lying eigenmodes of overlap fermions
      Y. Koma, E.-M. Ilgenfritz, K. Koller, G. Schierholz, T. Streuer, V. Weinberg
      LATTICE 2005, Trinity College, Dublin, Ireland, 25-30 July 2005
      Proc. Sci. LAT2005 (2005) 300-(1--6)
      (hep-lat/0509164)

    26. Finite size mass shift formula for stable particles revisited
      Y. Koma, M. Koma
      LATTICE 2004, Fermilab, Batavia, Illinois, USA, 21-26 June 2004
      Nucl. Phys. B (Proc. Suppl.) 140 (2005) 329--331
      (hep-lat/0409002)

    27. Structure of the baryonic flux tube in Nf=2 lattice QCD at finite temperature
      Y. Mori et al.
      LATTICE 2003, Tsukuba, Japan, 15-19 July 2003
      Nucl. Phys. B (Proc. Suppl.) 129&130 (2004) 742--744
      (hep-lat/0309176)

    28. Finite temperature phase transition in full QCD with Nf=2 flavors of clover fermions at Nt=8 and 10
      Y. Nakamura et al.
      LATTICE 2003, Tsukuba, Japan, 15-19 July 2003
      Nucl. Phys. B (Proc. Suppl.) 129&130 (2004) 733--735
      (hep-lat/0309144)

    29. The long range properties of the compact U(1) lattice gauge theory with the multi-level algorithm
      Y. Koma, M. Koma, P. Majumdar
      LATTICE 2003, Tsukuba, Japan, 15-19 July 2003
      Nucl. Phys. B (Proc. Suppl.) 129&130 (2004) 706--708
      (hep-lat/0309056)

    30. Glueball masses in U(1) LGT using the multilevel algorithm
      P. Majumdar, Y. Koma, M. Koma
      LATTICE 2003, Tsukuba, Japan, 15-19 July 2003
      Nucl. Phys. B (Proc. Suppl.) 129&130 (2004) 811--813
      (hep-lat/0309038)

    31. Finite temperature phase transition in lattice QCD with Nf=2 nonperturbatively improved Wilson fermions at Nt=8
      Y. Mori et al.
      PANIC 02, Osaka, Japan, 30 Sept - 4 Oct 2002
      Nucl. Phys. A721 (2003) 930--933
      (hep-lat/0301003)

    32. Casimir scaling hypothesis on the nonperturbative force in QCD versus dual superconducting scenario of confinement
      Y. Koma, M. Koma, H. Toki
      PANIC 02, Osaka, Japan, 30 Sept - 4 Oct 2002
      Nucl. Phys. A721 (2003) 903--906
      (hep-ph/0212400)

    33. Heavy quark potential in lattice QCD at finite temperature
      V. Bornyakov et al.
      Quark Confinement and the Hadron Spectrum V, Gargnano, Brescia, Italy, 10-14 Sept 2002
      (World Scientific, 2003) 294--296
      (hep-lat/0301002)

    34. String representation of the dual Ginzburg-Landau theory beyond the London limit
      M. Koma, Y. Koma, D. Ebert, H. Toki
      Quark Confinement and the Hadron Spectrum V, Gargnano, Brescia, Italy, 10-14 Sept 2002
      (World Scientific, 2003) 279--281
      (hep-ph/0212401)

    35. Electric magnetic duality of the confining flux tube in Abelian projected gluodynamics
      Y. Koma
      Quark Confinement and the Hadron Spectrum V, Gargnano, Brescia, Italy, 10-14 Sept 2002
      (World Scientific, 2003) 276--278
      (hep-ph/0212399)

    36. The profile of the broken string in the confined and deconfined phase in full QCD
      V. Bornyakov et al.
      LATTICE 2002, Cambridge, Massachusetts, USA, 24-29 June 2002
      Nucl. Phys. B (Proc. Suppl.) 119 (2003) 712--714
      (hep-lat/0212023)

    37. Thermodynamics and heavy quark potential in Nf=2 dynamical QCD
      V. Bornyakov et al.
      LATTICE 2002, Cambridge, Massachusetts, USA, 24-29 June 2002
      Nucl. Phys. B (Proc. Suppl.) 119 (2003) 703--708
      (hep-lat/0209157)

    38. A fresh look on the flux tube in Abelian projected SU(2) gluodynamics
      Y. Koma, M. Koma, T. Suzuki, E.-M. Ilgenfritz, M.I. Polikarpov
      LATTICE 2002, Cambridge, Massachusetts, USA, 24-29 June 2002
      Nucl. Phys. B (Proc. Suppl.) 119 (2003) 676--678
      (hep-lat/0210014)

    39. On the dynamics of color magnetic monopoles in full QCD
      V. Bornyakov et al.
      LATTICE 2001, Berlin, Germany, 19-24 Aug 2001
      Nucl. Phys. B (Proc.Suppl.) 106 (2002) 634--642
      (hep-lat/0111042)

    40. Topics of monopole dynamics in gluodynamics
      T. Suzuki, Y. Koma, S. Ito, E.-M. Ilgenfritz, T.W. Park, M.I. Polikarpov, T. Yazawa
      LATTICE 2001, Berlin, Germany, 19-24 Aug 2001
      Nucl. Phys. B (Proc.Suppl.) 106 (2002) 631--633
      (hep-lat/0110059)

    41. Weyl symmetric representation of SU(3) gluodynamics in Abelian projection
      Y. Koma, M. Takayama, H. Toki, D. Ebert
      Hadrons and Nuclei, Seoul, Korea, 20-22 Feb 2001
      AIP Conference Proceedings 594 (2001) 333--340
      (abstract)

    42. Quark confinement and strong Higgs particle
      H. Toki, M. Takayama, Y. Koma, A. Hosaka
      Physics with GeV Electrons and Gamma Rays, Sendai, Japan, 13-15 Feb 2001
      (Universal Academy Press, 2001) 189-194

    43. Confining flux-tube and hadrons in QCD
      Y. Koma, M. Takayama, H. Toki
      Confinement 2000, Osaka, Japan, 7-10 Mar 2000
      (World Scientific, 2001) 350--353

    44. Quark confinement physics in quantum chromodynamics
      Y. Koma, H. Suganuma, K. Amemiya, M. Fukushima, H. Toki
      PANIC 99, Uppsala, Sweden, 10-16 June 1999
      Nucl. Phys. A663-664 (2000) 1027--1030
      (hep-ph/9912347)

    45. Construction of the dual Ginzburg-Landau theory from the lattice QCD
      H. Suganuma, K. Amemiya, H. Ichie, Y. Koma
      NEWS 99, Osaka, Japan, 9-12 Mar 1999
      (World Scientific, 1999) 137-144
      (hep-ph/0407121)

    46. GEV photons at Spring8 / RCNP and quark nuclear physics
      H. Toki, M. Takayama, Y. Koma
      NEWS 99, Osaka, Japan, 9-12 Mar 1999
      (World Scientific, 1999) 104-110

    47. Hadronic flux tubes in the dual Ginzburg-Landau theory
      Y. Koma, H. Suganuma, H. Toki
      INNOCOM 97, Osaka, Japan, 10-15 Nov 1997
      (World Scientific, 1998) 315--317
      (hep-ph/9804289)

    48. Instantons and monopoles for nonperturbative QCD
      H. Suganuma et al.
      EXPAF 97, Aioi, Japan, 11-13 Mar 1997
      (World Scientific, 1998) 74--85
      (hep-ph/9804315)

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    Thesis

    1. Hadronic flux tube in dual superconducting vacuum of QCD
      Y. Koma
      Awarded the degree of PhD in physics (Osaka University, 2001)
      (PDF, 3.5MB)

    2. Color confinement and flux-tube physics based on the dual Ginzburg-Landau theory (in Japanese)
      Y. Koma
      Awarded the degree of MSc in physics (Osaka University, 1998)
      素粒子論研究 97, No.3 (1998) 104--156
      (PDF, 1MB)

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    Presentations at International Conferences/Workshops

    1. Precise determination of the three-quark potential in quenched lattice QCD (Poster)
      Phase structure of lattice field theories, Japanese-German Seminar 2016, Niigata, Japan, 26-28 Sept 2016

    2. The static three-quark potential from the Polyakov loop correlation function (20 min.)
      LATTICE 2014, Columbia Univ., New York, USA, 23 - 28 June 2014

    3. Anatomy of the heavy quark potential with the multilevel algorithm (Invited talk, 30min.)
      Lattice Field Theory on multi-PFLOPS computers, German-Japanese Seminar 2013, Regensburg, Germany, 6-8 Nov 2013 pic

    4. The static potential from the selected intermediate states of gluons (Poster)
      LATTICE 2013, Universitaet Mainz, Mainz, Germany, 29 July - 3 Aug 2013 pic

    5. Heavy quark potential and quarkonium spectrum with nonperturbative pNRQCD (Invited parallel talk, 25min.)
      The 20th International IUPAP Conference on Few-Body Problems in Physics (FB20), Fukuoka, Japan, 20-25 Aug 2012

    6. Heavy quarkonium spectroscopy in pNRQCD with lattice QCD input (20 min.)
      LATTICE 2012, Cairns, Australia, 24-30 June 2012 pic

    7. pNRQCD with lattice QCD input (Invited talk, 30min.)
      Heavy Quark Hadrons at J-PARC 2012, Tokyo Institute of Technology, Tokyo, 22 June 2012

    8. Lattice QCD study of the heavy quark potential (Poster)
      Lattice QCD confronts experiments, Japanese-German Seminar 2010, Mishima, Japan, 4-6 Nov 2010

    9. Heavy quark potentials derived from lattice QCD (Invited talk, 30min.)
      Chiral10 WORKSHOP, Valencia, Spain, 21-24 June 2010

    10. Momentum dependence of the topological susceptibility with overlap fermions (20 min.)
      LATTICE 2010, Villasimius, Sardinia, Italy, 14-19 June 2010

    11. Heavy quark potentials in lattice QCD (Invited talk, 60 min.)
      New Frontiers in QCD 2010 (Exotic Hadron Systems and Dense Matter), Yukawa Institute for Theoretical Physics, Kyoto University, 4-5 Feb 2010

    12. Nonperturbative determination of heavy quark potential in pNRQCD (Invited talk, 60 min.)
      HEAVY QUARK PHYSICS IN QCD, KEK, Tsukuba, Japan, 7-8 Sept 2009

    13. Scaling study of the relativistic corrections to the static potential (Poster)
      LATTICE 2009, Beijing University, Beijing, China, 25-31 July 2009 pic

    14. Momentum dependence of the topological susceptibility and its derivative at zero momentum with overlap fermions (Poster)
      Quark Confinement and the Hadron Spectrum VIII, Universitaet Mainz, Mainz, Germany, 1-6 Sept 2008 pic

    15. Determination of the velocity-dependent potentials at O(1/m^2) (20 min.)
      LATTICE 2007, Universitaet Regensburg, Regensburg, Germany, 30 July - 4 Aug 2007 pic

    16. Corrections to the static potetnial (45 min.)
      HQET workshop, DESY, Zeuthen, Germany, 25-26 Sept 2006 pic

    17. Spin-dependent potentials from lattice QCD (Invited talk, 20 min.)
      Heavy Quarkonium 2006, Brookhaven National Laboratory, USA, 27-30 June 2006

    18. Spin-dependent potentials in QCD (Invited talk, 20 min.)
      IVth International Conference on Quarks and Nuclear Physics (QNP06), Universidad Complutense de Madrid, Madrid, Spain, 5-10 June 2006

    19. Topological structure of the QCD vacuum proved via overlap fermions (Invited talk, 45 min.)
      Symposium on lattice field theory, Spring meeting of German Physical Society (DPG Tagung), Universitaet Dortmund, Dortmund, Germany 28-31 Mar 2006 pic

    20. Localization properties of low lying eigenmodes of overlap fermions (20 min.)
      Quantum Chromodynamics From the MeV to the TeV Scale, DESY, Hamburg, Germany, 27-30 Sept 2005 pic

    21. Localization properties of the topological charge density and the low lying eigenmodes of overlap fermions (20 min.)
      LATTICE 2005, Trinity College, Dublin, Ireland, 25-30 July 2005

    22. Finite size mass shift formula for stable particles (poster)
      DFG Begutachtung of Forschergruppe (Gitter-Hadronen-Phaenomenologie), Universitaet Regensburg, Regensburg, Germany, 7 Apr 2005 pic

    23. On the finite size mass shift formula for stable particles (30 min.)
      Meeting of the DFG Forschergruppe (Gitter-Hadronen-Phaenomenologie), DESY, Zeuthen, Germany, 25-26 Feb 2005 pic

    24. On the finite size mass shift formula for stable particles (30 min.)
      Quantum Fields in the Era of Teraflop-Computing, Universitaet Bielefeld, Bielefeld, Germany, 22-25 Nov 2004 pic

    25. Finite size mass shift formula for stable particles revisited (20 min.)
      LATTICE 2004, Fermilab, Batavia, Illinois, USA, 21-26 June 2004

    26. Nonpertrbative QCD: The color-electric flux tube and quark confinement (20 min.)
      Project Review 2003, MPI fuer Physik, Muenchen, Germany, 11-12 Dec 2003 pic

    27. Hadronic flux tube in dual superconducting vacuum of QCD and quark confinement (20 min.)
      Quarks in Hadrons and Nuclei II (310th Heraeus Seminar), Rothenfels Castle, Oberwoelz, Austria, 15-20 Sept 2003

    28. The long range properties of the compact U(1) lattice gauge theory with the multi-level algorithm (20 min.)
      LATTICE 2003, Tsukuba, Ibaraki, Japan, 15-19 July 2003

    29. A fresh look on the color-electric flux tube (Invited talk, 50 min.)
      Aspects of Confinement and Nonperturbative QCD, ECT*, Trento, Italy, 10-17 Mar 2003

    30. Duality of the gauge field singularities and the structure of the confining flux tube in Abelian-projected SU(2) gluodynamics (25 min.)
      Meeting of the DFG Forschergruppe (Gitter-Hadronen-Phaenomenologie), DESY, Zeuthen, Germany, 25-26 Oct 2002 pic

    31. Casimir scaling hypothesis on the nonperturbative force in QCD vs. dual superconducting scenario of confinement (20 min.)
      PANIC 02, Osaka, Japan, 30 Sept - 4 Oct 2002

    32. Electric magnetic duality of the confining flux tube in Abelian-projected gluodynamics (20 min.)
      Quark Confinement and the Hadron Spectrum V, Gargnano, Garda Lake, Italy, 10-14 Sept 2002

    33. A systematic study of the $Q\bar{Q}$ flux tube in Abelian-projected SU(2) lattice gauge theory (20 min.)
      LATTICE 2002, MIT, Cambridge, Massachusetts, USA, 24-29 June 2002

    34. Casimir scaling and hadronic flux tube in the dual Ginzburg-Landau theory (15 min.)
      First Joint Meeting of the Nuclear Physics Divisions of the APS and JPS (Hawaii 2001), Hawaii, USA, 17-20 Oct 2001

    35. Casimir scaling and hadronic flux tube in a dual superconducting vacuum of QCD (30 min.)
      Physics of colour confinement, ECT*, Trento, Italy, 12-21 Sept 2001

    36. Towards the string representation of dual Abelian Higgs model beyond the London limit (Invited talk, 30 min.)
      Quarks and Hadrons in Continuum Strong QCD, Tuebingen Univ., Tuebingen, Germany, 3-6 Sept 2001 pic

    37. Monopole dynamics in full QCD (20 min.)
      LATTICE 2001, Humboldt Univ., Berlin, Germany, 19-24 Aug 2001 pic

    38. Weyl symmetric representation of SU(3) gluodynamics in Abelian projection (20 min.)
      Hadrons and Nuclei, Yonsei Univ., Seoul, Korea, 20-22 Feb 2001

    39. Confining flux tube and hadrons in QCD (20 min.)
      Confinement 2000, Osaka, Japan, 7-10 Mar 2000

    40. Quark confinement physics in quantum chromodynamics (25 min.)
      PANIC 99, Uppsala, Sweden, 10-16 June 1999

    41. Glueball as the flux-tube ring solution in the dual Ginzburg-Landau theory (Poster)
      PANIC 99, Uppsala, Sweden, 10-16 June 1999

    42. Properties of the scalar glueball in the dual Ginzburg-Landau theory (Poster)
      NEWS 99, Osaka, Japan, 9-12 Mar 1999

    43. Hadronic flux-tubes in the dual Ginzburg-Landau theory (20 min.)
      INNOCOM97, Osaka, Japan, 10-15 Nov 1997

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    Seminar

    1. Lattice QCD study of heavy quark potential (60min.)
      Univ. of Tokyo, Tokyo, Japan, 7 July 2010

    2. 重いクォーコニウムに対する有効場の理論と格子QCDによるアプローチ (120 min.)
      KEK, Tsukuba, Japan, 26 June 2009

    3. Exploring the topological structure of the QCD vacuum with overlap fermions (90 min.)
      RCNP, Osaka Univ., Osaka, Japan, 23 Jan 2009

    4. Relativistic corrections to the heavy quark potential from lattice QCD (60 min.)
      KEK, Tsukuba, Japan, 15 Feb 2008

    5. Nonperturbative determination of the relativistic corrections to the heavy quark potential (90 min.)
      RCNP, Osaka Univ., Osaka, Japan, 22 June 2007

    6. Relativistic corrections to the heavy quark potential (50 min.)
      Institut fuer Kernphysik, Universitaet Mainz, Germany, 13 Nov. 2006 pic

    7. Spin-dependent potentials from lattice QCD (60 min.)
      MPI fuer Physik, Muenchen, Germany, 19 June 2006 pic

    8. Topological structure of the QCD vacuum probed via overlap fermions (30 min.)
      Milano Univ., Milano, Italy, 10 Nov. 2005

    9. Dual superconductor picture of QCD vacuum and hadronic flux tube (60 min.)
      DESY, Hamburg, Germany, 9 May 2005 pic

    10. On the finite size mass shift formula for stable particles (60 min.: informal)
      DESY, Hamburg, Germany, 2 Dec 2004 pic

    11. Hadronic flux tube in the dual superconducting vacuum of QCD (50 min.)
      Jena Univ., Jena, Germany, 26 June 2003 pic

    12. Effective string action of the U(1)xU(1) dual Ginzburg-Landau theory (50 min.)
      Humboldt Univ., Berlin, Germany, 6 May 2003 pic

    13. The color-electric flux tube and quark confinement (30 min.: informal)
      MPI fuer Physik, Muenchen, Germany, 20 Feb 2003 pic

    14. The structure of confining flux tube in AP-SU(2) lattice gauge theory (30 min.)
      ITEP, Moscaw, Russia, 4 Mar 2002

    15. Casimir scaling and hadronic flux tube in dual superconducting scenario of confinement (50 min.)
      Pisa Univ., Pisa, Italy, 7 Sept 2001

    16. Weyl symmetric formulation of SU(3) gluodynamics in Abelian projection (50 min.)
      Facl. Sci., Osaka Univ., Osaka, Japan, 9 Mar 2001

    17. The quantized dual Abelian Higgs model derived from SU(2) gluodynamics and its vacuum structure (50 min.)
      Kanazawa Univ., Ishikawa, Japan, 9 Nov 2000

    18. Dual Ginzburg-Landau theory and hadron structure (50 min.)
      Kanazawa Univ., Ishikawa, Japan, 7 June 2000

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    Bulletin

      NCT = Numazu College of Technology
      RCNP = Research Center for Nuclear Physics, Osaka University
      CMC = Cybermedia Center, Osaka University

    1. Numerical evaluation of the gradient of the inter-quark potential (planned)
      Y. Koma
      NCT Annual Report No.51 (2016) 59--62

    2. The static three-quark potential from one gauge configuration
      Y. Koma, M. Koma
      RCNP Annual Report 2015

    3. A numerical method for solving the dual Ginzburg-Landau theory
      Y. Koma
      NCT Annual Report No.50 (2015) 101--104

    4. Lattice QCD study of the static three-quark potential
      Y. Koma
      NCT Annual Report No.49 (2014) 71--74

    5. An extensive test of the multilevel algorithm for the heavy quark potential in lattice QCD
      Y. Koma
      NCT Annual Report No.48 (2013) 247--250

    6. Quarkonium spectra in potential nonrelativistic QCD
      Y. Koma
      NCT Annual Report No.47 (2012) 389--392

    7. Topological structure of the QCD vacuum with overlap fermions
      Y. Koma
      NCT Annual Report No.46 (2011) 337--340

    8. 高専1年入学時の物理予備診断テストの年次推移
      住吉光介, 駒佳明, 勝山智男
      NCT Annual Report No.45 (2010) 375--378

    9. Lattice QCD study of the spin-dependent heavy quark potential
      Y. Koma
      NCT Annual Report No.45 (2010) 363--366

    10. 沼津高専1年生の学習状況調査と学年会による学習指導
      佐藤誠, 住吉光介, 能登路純子, 種村俊介, 駒佳明
      平成21年度高専教育講演論文集,2009年8月,261--264

    11. Spin-dependent corrections in the heavy quark potential and the Gromes relation
      Y. Koma, M. Koma
      RCNP Annual Report 2009

    12. QCD vacuum structure probed via overlap fermions
      Y. Koma
      NCT Annual Report No.44 (2009) 317--320

    13. Scaling study of the spin-dependent relativistic corrections to the static inter-quark potential at O(1/m^2) up to 1.2 fm
      Y. Koma, M. Koma
      RCNP Annual Report 2008

    14. Color confinement due to the Abelian dual Meissner effect and gauge-independent monopoles
      T. Suzuki, M. Hasegawa, K. Ishiguro, Y. Koma and T. Sekido
      RCNP Annual Report 2008

    15. Relativistic corrections to the heavy quark potential from lattice QCD simulations
      Y. Koma
      NCT Annual Report No.43 (2008) 311--314

    16. Nonperturbative determination of the relativistic corrections to the static inter-quark potential at O(1/m) up to 0.9 fm
      Y. Koma, M. Koma, H. Wittig
      RCNP Annual Report 2007

    17. Abelian dominance without gauge fixing in SU(2) gluodynamics
      K. Ishiguro, Y. Koma, T. Sekido, T. Suzuki
      RCNP Annual Report 2007

    18. 格子QCDシミュレーションに基づく重いクォーク間ポテンシャルの研究
      駒佳明, 駒美保
      CMC Annual Report Vol.3 No.2 (2007) 3--6

    19. Heavy quark potential from lattice QCD simulations
      Y. Koma
      NCT Annual Report No.42 (2007) 313--316

    20. Nonperturbative determination of the relativistic corrections to the static inter-quark potential at O(1/m)
      Y. Koma, M. Koma, H. Wittig
      RCNP Annual Report 2006

    21. Nonperturbative determination of spin-dependent potentials in QCD
      Y. Koma, M. Koma, H. Wittig
      RCNP Annual Report 2005

    22. Abelian dominance in local unitary gauges in SU(2) gluodynamics
      K. Ishiguro, Y. Koma, Y. Mori, T. Sekido, T. Suzuki
      RCNP Annual Report 2005

    23. The dual Meissner effect in local unitary gauges in SU(2) gluodynamics
      K. Ishiguro, Y. Koma, Y. Mori, T. Sekido, T. Suzuki
      RCNP Annual Report 2005

    24. Finite size mass shift formula for stable particles
      Y. Koma, M. Koma
      RCNP Annual Report 2004

    25. String effect in 4D compact U(1) lattice gauge theory
      Y. Koma, M. Koma, P. Majumdar
      RCNP Annual Report 2003

    26. Generalized flux-tube solution in the [U(1)]^{N-1} dual Ginzburg-Landau theory
      Y. Koma
      RCNP Annual Report 2002

    27. The color-electric flux tube in Abelian-projected SU(2) gauge theory
      Y. Koma, M. Koma, E.-M. Ilgenfritz, T. Suzuki
      RCNP Annual Report 2002

    28. Effective string action of the dual Ginzburg-Landau theory beyond the London limit
      Y. Koma, M. Koma, D. Ebert, H. Toki
      RCNP Annual Report 2002

    29. Casimir scaling in Abelian-projected SU(3) gluodynamics
      Y. Koma, E.-M. Ilgenfritz, H. Toki, T. Suzuki
      RCNP Annual Report 2000

    30. Bogomolnyi limit and flux-tube solution in the DGL theory
      Y. Koma, H. Toki
      RCNP Annual Report 1999

    31. Scalar glueball as the flux-tube ring solution in the DGL theory
      Y. Koma, H. Suganuma, H. Toki
      RCNP Annual Report 1998

    32. Scalar glueball as the color-singlet monopole in the DGL theory
      Y. Koma, H. Suganuma, H. Toki
      RCNP Annual Report 1998

    33. Color confinement and flux-tube physics based on dual Ginzburg-Landau theory
      Y. Koma, H. Suganuma, H. Toki
      RCNP Annual Report 1997

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    日本物理学会 (JPS meeting)

    1. 格子QCDに基づく3クォーク間ポテンシャルの解析 (15 min.)
      日本物理学会第70回年次大会, 早稲田大学, 2015年3月21-24日

    2. 格子QCDによるポリヤコフ相関関数を用いた3クォーク間ポテンシャルの計算 (15 min.)
      日本物理学会第69回年次大会, 東海大学, 2014年3月27-30日

    3. 格子QCDによるクォーク間ポテンシャルを用いたボトモニウムスペクトル (15 min.)
      (格子QCDによるクォーク間ポテンシャルを用いたクォーコニウムスペクトル I )
      日本物理学会2012年 年次大会, 関西学院大学, 2012年3月24-27日

    4. オーバーラップフェルミオンを用いたQCD真空構造の解析 (15 min.)
      日本物理学会第65回年会, 岡山大, 2010年3月20-23日

    5. Topological structure of the QCD vacuum probed via overlap fermions (15 min.)
      日本物理学会第64回年会, 立教大, 2009年3月27-30日

    6. 重いクォーク間ポテンシャルにおける相対論的補正 (15 min.)
      日本物理学会第62回年会, 北海道大, 2007年9月22日

    7. 双対ギンツブルグ-ランダウ理論における ワイル対称性とバリオン-フラックスチューブ解 (15 min.)
      日本物理学会第 56 回年会, 中央大, 2001年3月30日

    8. Glueballs in the dual Ginzburg-Landau theory (properties of the scalar glueball) II (15 min.)
      日本物理学会第 55 回年会, 近畿大, 2000年3月31日

    9. Glueballs in the dual Ginzburg-Landau theory (properties of the scalar glueball) (15 min.)
      日本物理学会第54回年会, 広島大, 1999年3月29日

    10. Glueball study using the dual Ginzburg-Landau theory (15 min.)
      日本物理学会第53回年会, 東邦大習志野, 1998年3月31日

    11. Dual Ginzburg-Landau 理論のおける hadronic flux-tube の諸性質 (15 min.)
      日本物理学会1997年秋の分科会, 東京都立大, 1997年9月20日

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    国内研究会

    1. Lattice QCD study of the heavy quark potential with the multilevel algorithm (Invited talk, 40min.)
      ミニ滞在型研究検討会「チャームバリオンの構造と生成」 (2013年9月11日 J-PARC)

    2. NRQCD and pNRQCD for heavy quarkonium (Invited talk, 20min.)
      新学術領域「素核宇宙融合」x「新ハドロン」クロスオーバー研究会 (2012年7月12--13日 名古屋大学)

    3. 格子QCDに基づく重いクォーク間ポテンシャルの決定と現象論的応用 (Invited talk, 60 min.)
      新学術領域「新ハドロン」サマースクール (2011年8月9--12日 大阪大学銀杏会館)

    4. 重いクォーク間ポテンシャルの現象論的意義とその精密化 (Invited talk, 25 min.)
      特定領域「ストレンジネスで探るクォーク多体系」研究会 (2009年2月27--28日 KKRホテル熱海)

    5. SXで探る重いクォークの物理 (Invited talk, 20 min.)
      平成20年度スーパーコンピュータシンポジウム (2008年10月24日 大阪大学サイバーメディアセンター)

    6. Relativistic corrections to the heavy quark potential from lattice QCD II (25min.)
      RCNP 研究会「Challenge to New Exotic Hadrons」 (2008年7月30--31日 大阪大学RCNP)

    7. 格子QCDシミュレーションに基づくQCDの低エネルギー有効理論の構築 とその応用について (Invited talk, 60 min.)
      2002年 原子核三者若手 夏の学校クォーク・ハドロンセッション研究会 (2002年8月2日 長野県木島平)
      原子核研究 47, No. 5 (2003) 157-161

    8. 格子QCDに基づくハドロン的フラックスチューブの解析 (25 min.)
      基研 2002年度前期研究会 「素粒子物理学の進展」(2002年7月8--11日 京都大学基礎物理学研究所)
      素粒子論研究 107, No.4 (2003) D14

    9. The structure of confining flux tube in AP-SU(2) lattice gauge theory (45 min.)
      Kanazawa-RCNP joint mini-workshop on lattice QCD for hadron dynamics(2002年4月18日 大阪大学RCNP)

    10. Dual superconducting scenario of confinement in SU(N) gluodynamics (3min. + poster)
      基研 2001年度後期研究会 「新世紀の素粒子像」(2001年12月19--21日 京都大学基礎物理学研究所)
      素粒子論研究 105, No.4 (2002) D91-92

    11. DGL理論におけるハドロン的フラックスチューブとカシミアスケーリング
      RCNP研究会「非摂動QCDに基づくハドロンの構造と反応」 (2001年7月23--25日 大阪大学RCNP)

    12. クォークの閉じ込めにおけるCasimir スケーリング則と 双対超伝導体的QCD真空描像 (25 min.)
      基研 2001年度前期研究会 「新世紀の素粒子像」(2001年7月10--13日 京都大学基礎物理学研究所)
      素粒子論研究 104, No.4 (2002) D38-39

    13. Casimir scaling in a dual superconducting scenario of confinement (Invited talk, 45 min.)
      第29回北陸信越地区素粒子論グループ合宿 (2001年5月25--27日 福井県鯖江青年の家)

    14. Studies of quantum dual Abelian Higgs model corresponding to SU(2) gluodynamics (20 min.)
      基研研究会「場の量子論の基礎的諸問題と応用」(2000年12月20--22日 京都大学基礎物理学研究所)
      素粒子論研究 103, No.5 (2001) E54-56

    15. Monte carlo study of dual Abelian Higgs model corresponding to SU(2) gluodynamics (30 min.)
      KEK 研究会「並列計算機による格子ゲージ理論の進展」(2000年12月11--13日 KEK)

    16. Dual superconductor picture of QCD-vacuum and glueball (25 min.)
      KEK 田無研究会「QCDとハドロン物理 -- 現状と今後の課題 -- 」(1999年12月20--22日 KEK田無)

    17. 非摂動論的QCDに基づくグルーボール諸性質の解明 (20 min.)
      1999年 原子核三者若手 夏の学校クォーク・ハドロンセッション研究会 (1999年7月21--26日 長野県木島平)
      原子核研究 44, No.4 (2000) 155--160

    18. Color confinement and flux-tube physics based on the dual Ginzburg-Landau thoery (20 min.)
      1998年 原子核三者若手 夏の学校クォーク・ハドロンセッション研究会 (1998年7月21--26日 新潟県妙高高原)
      原子核研究 43, No.6 (1999) 119--123

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    その他

    1. Phase structure of lattice field theories
      日本学術振興会 二国間交流セミナー(日独セミナー2016)
      Niigata, Japan, 26-28 Sept 2016
      Local Organizer(代表者:江尻信司)

    2. 量子色力学に基づくクォーコニウムの研究 (poster)
      第10回静岡県東部テクノフォーラムin沼津高専 (2015年12月3日 沼津高専)

    3. 量子色力学に基づくクォーコニウムの研究 (poster)
      第9回静岡県東部テクノフォーラムin沼津高専 (2014年12月1日 沼津高専)

    4. 量子色力学に基づくクォーコニウムの研究 (poster)
      第8回静岡県東部テクノフォーラムin沼津高専 (2013年12月2日 沼津高専)

    5. 量子色力学に基づくクォーコニウムの研究 (poster)
      第7回静岡県東部テクノフォーラムin沼津高専 (2012年11月30日 沼津高専)

    6. スーパーコンピュータで探る重いクォークの物理 (poster)
      第6回静岡県東部テクノフォーラムin沼津高専 (2011年12月2日 沼津高専)

    7. スーパーコンピュータで探る重いクォークの物理 (poster)
      第5回静岡県東部テクノフォーラムin沼津高専 (2010年11月26日 沼津高専)

    8. Lattice QCD confronts experiments
      日本学術振興会 二国間交流セミナー(日独セミナー2010)
      Mishima, Japan, 4-6 Nov 2010
      Local Organizer(代表者:金谷和至)

    9. 格子QCDによる有限温度QCDの研究 (20 min.)
      KEK大型シミュレーション研究審査会 (2009年9月8日 KEK)

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    科研費等 (KAKENデータベース)

    1. 平成24ー26年度
      文部科学省・科学研究費補助金(若手研究 B)
      非相対論的QCDに基づくクォーコニウムの研究
      研究代表者
      課題番号:24740176

    2. 平成20ー22年度
      文部科学省・科学研究費補助金(若手研究 B)
      格子QCDと有効場の理論を用いた重いクォークの物理
      研究代表者
      課題番号:20740149

    3. 平成20−21年度
      日本学術振興会・二国間交流事業(ドイツ)
      格子理論によるグルーオン場のトポロジーとクォークのカイラル対称性の研究
      研究分担者

    4. 平成14年度
      文部科学省・科学研究費補助金(若手研究 B)
      量子色力学の低エネルギー有効理論とハドロン構造の研究
      研究代表者
      課題番号:14740161

    5. 平成13年度
      文部科学省・科学研究費補助金(基盤研究 B)
      非摂動くりこみ群によるカイラル対称性の破れの解析
      研究分担者(研究代表者:青木健一)
      課題番号:13440076

    6. 平成13年度
      文部科学省・科学研究費補助金(基盤研究 B)
      QCDにおける閉じ込め機構と双対性
      研究分担者(研究代表者:鈴木恒雄)
      課題番号:11695029

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    Award

  • 第5回(2010年度)素粒子メダル奨励賞素粒子論グループ
    Y. Koma, M. Koma, Spin-dependent potentials from lattice QCD
    Nucl. Phys. B769 (2007) 79--107

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    Journal referee experience

    1. Physical Review D
    2. Physical Review Letters
    3. Progress of Theoretical Physics
    4. Nuclear Physics B
    5. International Journal of Modern Physics

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