Functional renormalization group in the 2D Hubbard model

Honerkamp, C.

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Functional renormalization group in the 2D Hubbard model

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Honerkamp, C.
Department Quantum Many-Body Theory (Walter Metzner), Max Planck Institute for Solid State Research, Max Planck Society;

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Honerkamp, C. (2006). Functional renormalization group in the 2D Hubbard model. International Journal of Modern Physics B, 20(19), 2636-2646.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FBD0-C

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.