Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coupled-cluster renormalization group   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 $\phi^{4}$ theory.

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The categories of this paper are: gr-qc
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The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: eess
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The categories of this paper are: q-bio
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The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: nlin