Variational study of Fermi-surface deformations in Hubbard models

Details Variational study of Fermi-surface deformations in Hubbard models Variational study of Fermi-surface deformations in Hubbard models

2011-08-22

arxiv.org/abs/1108.4284v2

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 6 figures

Scientific paper

We study the correlation-induced deformation of Fermi surfaces by means of a
new diagrammatic method which allows for the analytical evaluation of
Gutzwiller wave functions in finite dimensions. In agreement with
renormalization-group results we find Pomeranchuk instabilities in
two-dimensional Hubbard models for sufficiently large Coulomb interactions.

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