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Overlap fermion with the topology conserving gauge action
H. Fukaya, S. Hashimoto, T. Hirohashi +3
We investigate the distribution of low-lying eigenmodes of hermitian Wilson-Dirac operator, , with the gauge action whose form is designed to avoid topology change, as well as…
Meson correlators in a finite volume near the chiral limit
Hidenori Fukaya, Shoji Hashimoto, Kenji Ogawa
We report on the results of our calculation of meson correlators in a finite volume. The calculation is carried out in the quenched approximation near the chiral limit (down to Mq…
Topology conserving gauge action and the overlap-Dirac operator
H. Fukaya, S. Hashimoto, T. Hirohashi +2
We apply the topology conserving gauge action proposed by Luescher to the four-dimensional lattice QCD simulation in the quenched approximation. With this gauge action the topologi…
Parameter dependence of the topology change and the scaling properties of the topology conserving gauge action
H. Fukaya, T. Onogi, S. Hashimoto +2
The topology conserving gauge action proposed by Luescher is expected to reduce the number of non-smooth gauge configurations as well as the topology change compared to the convent…
Low-lying mode contribution to the quenched meson correlators in the epsilon-regime
Hidenori Fukaya, Shoji Hashimoto, Kenji Ogawa
We present a quenched calculation of meson correlators with the overlap fermion at very small masses 2.6--13 MeV. In this region the pion Compton wavelength is larger than our latt…