A Perturbative Improvement of the Hierarchical Approximation

Yannick Meurice

doi:10.48550/arxiv.hep-th/9307128

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A Perturbative Improvement of the Hierarchical Approximation

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A Perturbative Improvement of the Hierarchical Approximation

Yannick Meurice

ArXiv.org

Cornell University

07/20/1993

DOI: 10.48550/arxiv.hep-th/9307128

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https://doi.org/10.48550/arXiv.hep-th/9307128View

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Abstract

We propose a perturbative improvement of the hierarchical approximation for gaussian models. The procedure is based on a relabeling of the momenta which allows one to express the symmetries of the hierarchical model using a simple multiplication group. The representations of this group are used to expand the action. The perturbative expansion is treated as a problem of symmetry breaking using Ward identity techniques.

Details

Title: Subtitle: A Perturbative Improvement of the Hierarchical Approximation
Creators: Yannick Meurice
Resource Type: Preprint
Publication Details: ArXiv.org
Publisher: Cornell University
DOI: 10.48550/arxiv.hep-th/9307128
ISSN: 2331-8422
Number of pages: 11
Language: English
Date posted: 07/20/1993
Academic Unit: Physics and Astronomy
Record Identifier: 9984442010302771

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