Warped domain wall fermions
نویسندگان
چکیده
منابع مشابه
Warped Domain Wall Fermions
We consider Kaplan’s domain wall fermions in the presence of an Anti-de Sitter (AdS) background in the extra dimension. Just as in the flat space case, in a completely vector-like gauge theory defined after discretizing this extra dimension, the spectrum contains a very light charged fermion whose chiral components are localized at the ends of the extra dimensional interval. The component on th...
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Staggered Domain Wall Fermions (SDWF) combine the attractive chiral properties of staggered fermions with those of domain wall fermions. SDWF describe four flavors with exact U(1)×U(1) flavor chiral symmetry. An extra lattice dimension is introduced and the full SU(4)×SU(4) flavor chiral symmetry is recovered as its size is increased. Here, the free theory of SDWF is described and a preliminary...
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I show that the conventional formulations of lattice domain-wall fermion with any finite Ns (in the fifth dimension) do not preserve the chiral symmetry optimally and propose a new action which preserves the chiral symmetry optimally for any finite Ns. PACS numbers: 11.15.Ha, 11.30.Rd, 12.38.Gc
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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...
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In the quenched approximation Domain Wall Fermions [1,2] (DWF) have been found to be an extremely successful approach to simulating QCD on the lattice. Crucial to this success is the fact that, when working at weak couplings (a ≈ 2GeV) and using improved gauge actions such as the DBW2 action, the degree of explicit chiral symmetry breaking is very small for practically useful sizes of the fifth...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2005
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2005/08/061