Two-flavor lattice QCD simulation in the epsilon-regime with exact chiral symmetry

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dc.creatorJLQCD collaboration
dc.creatorFukaya, H.
dc.creatorAoki, S.
dc.creatorChiu, T. W.
dc.creatorHashimoto, S.
dc.creatorKaneko, T.
dc.creatorMatsufuru, H.
dc.creatorNoaki, J.
dc.creatorOgawa, K.
dc.creatorOkamoto, M.
dc.creatorOnogi, T.
dc.creatorYamada, N.
dc.date2007-02-02
dc.date.accessioned2026-07-07T11:01:58Z
dc.date.available2026-07-07T11:01:58Z
dc.descriptionWe perform lattice simulations of two-flavor QCD using Neuberger's overlap fermion, with which the exact chiral symmetry is realized at finite lattice spacings. The epsilon-regime is reached by decreasing the light quark mass down to 3 MeV on a 16^3 32 lattice with a lattice spacing \sim 0.11 fm. We find a good agreement of the low-lying Dirac eigenvalue spectrum with the analytical predictions of the chiral random matrix theory, which reduces to the chiral perturbation theory in the epsilon-regime. The chiral condensate is extracted as Σ(2 GeV) = (251(7)(11) MeV)^3, where the errors are statistical and an estimate of the higher order effects in the epsilon-expansion.
dc.description10pages, 4figures
dc.identifierhttps://arxiv.org/abs/hep-lat/0702003
dc.identifierhttp://arxiv.org/abs/hep-lat/0702003
dc.identifierPhys.Rev.Lett.98:172001,2007
dc.identifierdoi:10.1103/PhysRevLett.98.172001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188109
dc.subjectHigh Energy Physics - Lattice
dc.titleTwo-flavor lattice QCD simulation in the epsilon-regime with exact chiral symmetry
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