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arXiv · cond-mat/9703189

Weakly correlated electrons on a square lattice: a renormalization group theory

D. Zanchi·H. J. Schulz
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Abstract

We study the weakly interacting Hubbard model on the square lattice using a one-loop renormalization group approach. The transition temperature T_c between the metallic and (nearly) ordered states is found. In the parquet regime, (T_c >> |mu|), the dominant correlations at temperatures below T_c are antiferromagnetic while in the BCS regime (T_c << |mu|) at T_c the d-wave singlet pairing susceptibility is most divergent.

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D. Zanchi, H. J. Schulz. 1997-03-20. Weakly correlated electrons on a square lattice: a renormalization group theory. https://doi.org/10.1209/epl%2Fi1998-00462-x

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