• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2000 Fiscal Year Final Research Report Summary

Study of QCD confinement mechanism using large-scale parallel computers

Research Project

Project/Area Number 10440073
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionKanazawa University

Principal Investigator

SUZUKI Tsuneo  Kanazawa University, Physics, Professor, 理学部, 教授 (60019502)

Co-Investigator(Kenkyū-buntansha) TERAO Haruhiko  Kanazawa University, Physics, Assoc. Professor, 自然科学研究科, 助教授 (40192653)
AOKI Ken-ichi  Kanazawa University, Playsics, Professor, 理学部, 教授 (00150912)
KUBO Jisuke  Kanazawa University, Physics, Professor, 理学部, 教授 (40211213)
Project Period (FY) 1998 – 2000
KeywordsQuark confinement / Monopole / Monte-Carlo Simulation / Lattice QCD / Dual transformation / Infrared effective theory of QCD / Finite-temperature phase transition / topology
Research Abstract

The following results have been obtained mainly from Monte-Carlo simulation studies using SR8000 (VPP500) at KEK and VPP700 at RIKEN :
(1)pure SU (2) QCD : Almost perfect monopole action in the continuum limit is obtained. Along with a perfect operator constructed, it leads us to the rotational invariance in the continuum limit. The action can be transformed exactly into a string theory and the dual Ginzburg-Landau theory on the lattice. (2) pure SU (3) QCD : Almost perfect monopole action for constained three monopole courrents is fixed. The static potential, the string tension and the glueball mass are evaluated. (3) Gauge (in) dependence of abelian dominance : Gauge independence of the monopole physics are studied using various block-spin transformations with various gauges. (4) 3d Georgi-Glashow model : lattice instanton action is fixed numerically for some range of parameters. It is shown to be compatible with the dilute-gas approximation of Polyakov's calculation. (5) Simulations of DGL theory : The electric-field flux distribution is measured in DGL theory numerically which looks similar to that of QCD.(6) T≠0 QCD : From the simulations on anisotropic lattice, space-space and time-time monopole actions are obtained. They are shown to be quite different in the high-temperature phase. (7) full QCD : Intertational collaboration with DESY and ITEP groups has begun. Preliminary data shows monopole density is much higer than that in the quenched case.

  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] Y.Koma: "Weyl Symmetric representation of hadronic flux tubes in the dual Ginzburg-Landau Theory"Phys.Rev.. D. (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Fujimoto: "A quantum perfect lattice action for mopoles and strings"Phyo.Lett.. B476. 437-447 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.N.Chernodul: "An almost perfect quantum lattice action for low-energy SU(2) Gluodynamics"Phys.Rev. D62. 694506-1-16 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Yamagishi: "Lattice mopole action in pure SW(3) QCD"JHEP. 0002. 612-632 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] F.Shoji: "A new gauge-fixing method for abelian projection."Phys.Lett.. B476. 199-204 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] F.V.Gubarev: "The lattice SU(2) conting string as an Abrikosov vortex"Phys.Lett.. B468. 134-137 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Koma et al.: "Weyl symmetric representation of hadronic flux tubes in the dual Ginzburg-Landau theory, hep-ph/0011165"to appear in Phys.Rev.D.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Fujimoto et al.: "A Quantum Perfect Lattice Action for Monopoles and Strings"Phys.Lett.. B476. 437-447 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.N.Chernodub et al.: "An almost perfect quantum lattice action for low-energy SU (2) gluodynamics"Phys.Rev.D. Volume 62. 094506-1-094506-16

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Yamagishi et al.: "Lattice monopole action in pure SU (3) QCD"JHEP 02. 012-032 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] F.Shoji, T.Suzuki, H.Kodama and A.Nakamura: "A new gauge-fixing method for abelian projection"Phys.Lett. B476. 199-204 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] F.V.Gubarev, E.-M.Ilgenfritz, M.I.Polikarpov and T.Suzuki: "The lattice SU (2) confining string as an Abrikosov vortex"Phys.Lett.. B468. 134-137 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Kitahara, O.Miyamura, T.Okude, F.Shoji and T.Suzuki: "Monopoles and hadron spectrum in quenched QCD"Nucl.Phys.. B533. 576-590 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Kato, S.Kitahara, N.Nakamura and T.Suzuki: "Perfect monopole action in SU (2) QCD"Nucl.Phys.. B520. 323-344 (1998)

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

URL: 

Published: 2002-03-26  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi