Covariant approach to the wilson renormalization of nonlinear σ models

V.I. Yudson

Physica A: Statistical Mechanics and its Applications, 1990, vol. 167, issue 1, 140-148

Abstract: An approach is presented which allows to perform the Wilson RG analysis of the nonlinear σ models (Q matrix and S-vector models are considered) in such a way that a contribution of any diagram of the loop expansion is expressed directly in terms of a slow field (Qslow or Sslow).

Date: 1990
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:167:y:1990:i:1:p:140-148

DOI: 10.1016/0378-4371(90)90048-W

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