Symmetry-breaking Fermi surface deformations from central interactions in two dimensions

Details Symmetry-breaking Fermi surface deformations from central interactions in two dimensions Symmetry-breaking Fermi surface deformations from central interactions in two dimensions

2008-05-29

arxiv.org/abs/0805.4623v2

Phys. Rev. B 78, 035131 (2008) (Editors' suggestion)

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 3 figures

Scientific paper

10.1103/PhysRevB.78.035131

We present a mean field theory of the Pomeranchuk instability in two dimensions, starting from a generic central interaction potential described in terms of a few microscopic parameters. For a significant range of parameters, the instability is found to be pre-empted by a first-order quantum phase transition. We provide the ground state phase diagram in terms of our generic parameters.

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