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arXiv:hep-th/0310205

Coupled-cluster renormalization group

Amir H. Rezaeian, Niels R. Walet

Published Oct 22, 2003• 0 citations
arXivHTMLPDF

Abstract

The coupled cluster method (CCM) is one of the most successful and universally applicable techniques in quantum many-body theory. The intrinsic nonlinear and non-perturbative nature of the method is considered to be one of its advantages. We present here a combination of CCM with the Wilsonian renormalization group which leads to a powerful framework for construction of effective Hamiltonian field theories. As a toy example we obtain the two-loop renormalized $ϕ^{4}$ theory.

DOI
10.48550/arxiv.hep-th/0310205

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