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arXiv · hep-th/0310205

Coupled-cluster renormalization group

Amir H. Rezaeian·Niels R. Walet
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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.

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Amir H. Rezaeian, Niels R. Walet. 2003-10-22. Coupled-cluster renormalization group. https://arxiv.org/abs/hep-th/0310205

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