Dynamical overlap fermion at fixed topology

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dc.creatorJLQCD collaboration
dc.creatorHashimoto, S.
dc.creatorAoki, S.
dc.creatorFukaya, H.
dc.creatorKanaya, K.
dc.creatorKaneko, T.
dc.creatorMatsufuru, H.
dc.creatorOkamoto, M.
dc.creatorOnogi, T.
dc.creatorYamada, N.
dc.date2006-10-02
dc.date.accessioned2026-07-07T10:41:21Z
dc.date.available2026-07-07T10:41:21Z
dc.descriptionWe launched a project to perform dymanical fermion simulations using the overlap fermion formulation for sea quarks. In order to avoid the appearace of near-zero modes of the hermitian Wilson-Dirac operator $H_W$, we introduce a pair of extra Wilson fermions with a large negative mass term. Crossing of the topological boundary is then strictly prohibited, and the topological charge is conserved during simulations. It makes the simulations substantially faster compared to the algorithms which allow the topology change. We discuss on the finite volume effects due to the fixed global topology.
dc.description7 pages, 4 figures, talk presented at Lattice 2006 (chiral symmetry); to appear in Proceedings of Science, PoS(LAT2006)052
dc.identifierhttps://arxiv.org/abs/hep-lat/0610011
dc.identifierhttp://arxiv.org/abs/hep-lat/0610011
dc.identifierPoSLAT2006:052,2006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181600
dc.subjectHigh Energy Physics - Lattice
dc.titleDynamical overlap fermion at fixed topology
dc.typetext

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