Functional renormalization group in the two-dimensional Hubbard model

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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.
Talk at conference 'Recent progress in many-body theories', Santa Fe, August 2004, 7 pages

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Strongly Correlated Electrons, Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/25250

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0411267
 http://arxiv.org/abs/cond-mat/0411267

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arXiv