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2005 Fiscal Year Final Research Report Summary

International collaboration on the vacuum structure of full QCD using large-scale parallel computers

Research Project

Project/Area Number 15340073
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionKanazawa University

Principal Investigator

SUZUKI Tsuneo  Kanazawa University, Physics, Professor, 総合メディア基盤センター, 教授 (60019502)

Co-Investigator(Kenkyū-buntansha) IZUBUCHI Taku  Kanazawa University, Physics, assistant, 自然科学研究科, 助手 (60324068)
Project Period (FY) 2003 – 2005
Keywordsmonopole / quantum chromodynamics / quark confinement
Research Abstract

The following results have been obtained mainly from Monte-Carlo simulation studies using SR8000 at KEK and SX7 at RIKEN :
(1)DIK group study of finite-tenperature full QCD :
International collaboration with DESY and ITEP groups. The phase transition temperature is determined on lattices of 16^3X8 and 24^3X10 using an 0(alpha) improved clover fermion action with Nf=2 light quarks. Using the previos data at Nt=4 and Mt=6,we have obtained for the first time the phase transition temperature in the chiral and the continuum limits, although the quark mass used is not light enough. We are continuing the simulations at lighter quark masses using a new BlueGene maschine at KEK.
(2)Gauge invariance of the confinement mechanism :
Confinement is a physical phenomenon and so there must be a gauge-invariant mechanism explaining confinement. Up to now abelian projection methods using some non-local gauges can explain the confinement beautifully as the dual Meissner effect.
Using SX7 at Riken and performing an extensive Monte-Carlo simulations, we have found even in Landau gauge, the abelian dual Meissner effect works good. However in the gauge, there are no abelian monopoles, but instead the magnetic displacement currents squeezes the electric field.
This kind of picture is expected to work in general and so we are doing simulations in various local gauges (known as a bad gauge) to check the expectation.

  • Research Products

    (21 results)

All 2005 2004 2003

All Journal Article (21 results)

  • [Journal Article] Vacuum type of SU(2) gluodynamics in maximally Abelian and Ladau gauges2005

    • Author(s)
      Tsuneo Suzuki et al.(M.N.Chernodub)
    • Journal Title

      Phys.Rev. D72

      Pages: 074505-1-074505-14

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Entropy of spatial monopole currents in pure SU(2) QCD at finite temperature2005

    • Author(s)
      Tsuneo Suzuki et al.(M.N.Chernodub)
    • Journal Title

      Phys.Rev. D71

      Pages: 094506-1-094506-8

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] The dual Meissner effect and magnetic displacement currents2005

    • Author(s)
      (Tsuneo Suzuki), Katsuya Ishiguro, Yoshihiro Mori, Toru Sekido
    • Journal Title

      Phys.Rev.Lett. 94

      Pages: 132001

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Finite Temperature QCD with Two Flavors of Non-perturbatively Improved Wilson Fermions2005

    • Author(s)
      Tsuneo Suzuki et al.(V.G.Bornyakov)
    • Journal Title

      Phys.Rev. D71

      Pages: 114504-1-114504-20

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Monopoles in gluodynamics and Blocking from continuum to lattice2005

    • Author(s)
      (M.N.Chernodub), K.Ishiguro, T.Suzuki
    • Journal Title

      Phys.Atom.Nucl. 68

      Pages: 634-649

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Structure of the Gauge Fields inside Baryon2005

    • Author(s)
      Tsuneo Suzuki et al.(V.G.Bornyakov)
    • Journal Title

      Phys.Atom.Nucl. 68

      Pages: 616-623

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Vacuum type of SU(2) gluodynamics in maximally Abelian and Landau gauges2005

    • Author(s)
      (M.N.Chernodub), Tsuneo Suzuki et al.
    • Journal Title

      P.R.D 71

      Pages: 094506-(1)-094506-(8)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The dual Meissner effect and magnetic displacement currents2005

    • Author(s)
      Tsuneo Suzuki, Katsuya Ishiguro, Yoshihiro Mori, Toru Sekido
    • Journal Title

      Phys.Rev.Lett. 94

      Pages: 132001

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Finite Temperature QCD with Two Flavors of Non-perturbatively Improved Wilson Fermions2005

    • Author(s)
      (V.G.Bornyakov), Tsuneo Suzuki et al.
    • Journal Title

      Phys.Rev.D 71

      Pages: 114504-(1)-114504-(29)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Monopoles in gluodynamics and Blocking from continuum to lattice2005

    • Author(s)
      M.N.Chernodub, K.Ishiguro, T.Suzuki
    • Journal Title

      Phys.Atom.Nucl. 68

      Pages: 634-649

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Structure of the Gauge Fields inside Baryo2005

    • Author(s)
      (V.G.Bornyakov), Tsuneo Suzuki et al.
    • Journal Title

      Phys.Atom.Nucl. 68

      Pages: 616-623

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Profiles of the broken string in two-flavor QCD below and above the finite temperature transition2004

    • Author(s)
      (V.G.Bornyakov), Tsuneo Suzuki et al.
    • Journal Title

      Prog.Theor.Phys. 112

      Pages: 307-324

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Monopole Gas in Three Dimensional SU(2) Gluodynamics2004

    • Author(s)
      M.N.Chernodub, K.Ishiguro, T.Suzuki
    • Journal Title

      Prog.Theor.Phys. 112

      Pages: 1023-1045

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Dynamics of Monopoles and Flux Tubes in Two-Flavor Dynamical QCD2004

    • Author(s)
      (V.G.Bornyakov), Tsuneo Suzuki et al.
    • Journal Title

      Phys.Rev.D 70

      Pages: 074511

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Baryonic Flux in Quenched and Two-Flavor Dynamical QCD fter Abelian projection2004

    • Author(s)
      (V.G.Bornyakov), Tsuneo Suzuki et al.
    • Journal Title

      Phys.Rev.D 70

      Pages: 054506

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Matter degrees of freedom and string breaking in Abelian projected quenched SU(2) QCD2004

    • Author(s)
      M.N.Chernodub, Koichi Hashimoto, Tsuneo Suzuki
    • Journal Title

      Phys.Rev.D 70

      Pages: 014506

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Determination of monopole condensate from monopole action in quenched SU(2) QCD2004

    • Author(s)
      M.N.Chernodub, Katsuya Ishiguro, Tsuneo Suzuki
    • Journal Title

      Phys.Rev.D 69

      Pages: 094508

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A detailed study of the Abelian-projected SU(2) flux tube and its dual Ginzburg-Landau analysis2003

    • Author(s)
      Y.Koma, M.Koma, E.-M.Ilgenfritz, T.Suzuki
    • Journal Title

      Phys.Rev.D 68

      Pages: 114504

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Duality of gauge field singularities and the structure of the flux tube in Abelian-projected SU(2) gauge theory and the dual abelian Higgs model2003

    • Author(s)
      Y.Koma, M.Koma, E.-M.Ilgenfritz, T.Suzuki, M.I.Polikarpov
    • Journal Title

      Phys.Rev.D 68

      Pages: 094018

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Gauge Problem of Monopole Dynamics in SU(2) Lattice Gauge Theory2003

    • Author(s)
      Shoichi Ito, Tae Woong Park, Tsuneo Suzuki
    • Journal Title

      Phys.Rev.D 67

      Pages: 074504

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Screening and confinement in U(1)^<N-1> Abelian effective theories2003

    • Author(s)
      Tsuneo Suzuki, M.N.Chernodub
    • Journal Title

      Phys.Lett.B 563

      Pages: 183-190

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 2007-12-13  

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