Functional renormalization group in the two-dimensional Hubbard model

Carsten Honerkamp

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arXiv · cond-mat/0411267

Functional renormalization group in the two-dimensional Hubbard model

Carsten Honerkamp

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Abstract

We review recent developments in functional renormalization group (RG) methods for interacting fermions. These approaches aim at obtaining an unbiased picture of competing Fermi liquid instabilities in the low-dimensional models like the two-dimensional Hubbard model. We discuss how these instabilities can be approached from various sides and how the fermionic RG flow can be continued into phases with broken symmetry.

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Carsten Honerkamp. 2004-11-10. Functional renormalization group in the two-dimensional Hubbard model. https://arxiv.org/abs/cond-mat/0411267

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