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

J. Quintanilla; M. Haque; A. J. Schofield

doi:10.1103/physrevb.78.035131

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arXiv · 0805.4623

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

J. Quintanilla·M. Haque·A. J. Schofield

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Abstract

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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J. Quintanilla, M. Haque, A. J. Schofield. 2008-07-30. Symmetry-breaking Fermi surface deformations from central interactions in two dimensions. https://doi.org/10.1103/physrevb.78.035131

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