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Vector like gauge theories with almost massless fermions on the lattice
Herbert Neuberger
A truncation of the overlap (domain wall fermions) is studied and a criterion for reliability of the approximation is obtained by comparison to the exact overlap formula describing…
The overlap passes a chiral dynamical test in two dimensions
Yoshio Kikukawa, Herbert Neuberger
A certain U(1) model in 2 dimensions, describing four right handed unit charged Weyl fermions interacting with one doubly charged left handed Weyl fermion, is exactly soluble and h…
Exactly massless quarks on the lattice
Herbert Neuberger
It is suggested that the fermion determinant for a vector-like gauge theory with strictly massless quarks can be represented on the lattice as , where $V=X(X^\d…
Comments on ``Lattice Formulation of the Standard Model'' by Creutz. et. al
Herbert Neuberger
The main construction of the paper in the title [hep-lat/9612017] is summarized using more standard particle physics language. Also, a flaw is pointed out and several objections to…
Monte Carlo evaluation of a fermion number violating observable in 2D
Yoshio Kikukawa, Rajamani Narayanan, Herbert Neuberger
We describe in some detail a computer evaluation of a 't Hooft vertex in a two dimensional model using the overlap. The computer result agrees with the known exact continuum value,…