Existence of an incommensurate ground state of interacting spinless fermions in infinite dimensions

Abstract

We focus on the ground state phase diagram of a system of spinless fermions with repulsion on a hypercubic lattice in the limit of infinite dimensions. It occurs spontaneous symmetry breaking into a charge density wave (CDW). Using an ansatz for the order parameter which includes the homogeneous, the AB- and a large class of incommensurate phases we are able to calculate the phase diagram.

8 pages, LaTeX

References in corpus (1)

• Renormalization Group Approach to Interacting Fermions

Cited by in corpus (5)

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• Interacting spinless fermions on the square lattice: Charge order, phase separation, and superconductivity