Two-loop β-function for the Gross-Neveu model
نویسندگان
چکیده
منابع مشابه
Gross – Neveu Model
for i = 1, · · · , N . Note that the sum over i is taken inside the parenthes before taking the square, which is not very clear in the way Peskin–Schroeder writes the Lagrangian density. I’ve put the subscript g0 to indicate that it is the bare coupling. This model describes massless spin 1/2 fermions in one spatial dimension with an attractive short-range potential. What the model does is that...
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We consider a lattice version of the bosonized Gross-Neveu model. It is explicitely chiral symmetric and its numerical simulation does not involve any anticommuting field. We study its non trivial 1/N expansion up to the next-to-leading term comparing the results with explicit numerical simulations. (∗) [email protected], [email protected]
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1985
ISSN: 0370-2693
DOI: 10.1016/0370-2693(85)90551-9