Gap Domain Wall Fermions
نویسنده
چکیده
I demonstrate that the chiral properties of Domain Wall Fermions (DWF) in the large to intermediate lattice spacing regime of QCD, 1 to 2 GeV, are significantly improved by adding to the action two standard Wilson fermions with supercritical mass equal to the negative DWF five dimensional mass. Using quenched DWF simulations I show that the eigenvalue spectrum of the transfer matrix Hamiltonian develops a substantial gap and that the residual mass decreases appreciatively. Furthermore, I confirm that topology changing remains active and that the hadron spectrum of the added Wilson fermions is above the lattice cutoff and therefore is irrelevant. I argue that this result should also hold for dynamical DWF and furthermore that it should improve the chiral properties of related fermion methods.
منابع مشابه
The method of gap domain wall fermions
I present the gap domain wall fermion (GDWF) method. I show that GDWF induce a substantial gap in the transfer matrix Hamiltonian along the fifth dimension. As a result they significantly improve the chiral properties of domain wall fermions in the large to intermediate lattice spacing regime of QCD, 1 to 2 GeV. Furthermore, I argue that this method should also improve the chiral properties of ...
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