Nonperturbative calculation of symmetry breaking in quantum field theory
نویسندگان
چکیده
منابع مشابه
Nonperturbative calculation of symmetry breaking in quantum field theory
A new version of the delta expansion is presented, which, unlike the conventional delta expansion, can be used to do nonperturbative calculations in a self-interacting scalar quantum field theory having broken symmetry. We calculate the expectation value of the scalar field to first order in δ, where δ is a measure of the degree of nonlinearity in the interaction term. Typeset using REVTEX 1 In...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1997
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.55.r3255