Ground state and excitations of a four-component fermion model

You‐Quan Li, Guan-Shan Tian, Michael Ma, Hai-Qing Lin

Type: Article

Publication Date: 2004-12-20

Citations: 3

DOI: https://doi.org/10.1103/physrevb.70.233105

Abstract

The properties of the ground state and excitations of a four-component Hubbard-like model are studied by the Lieb-Schultz-Mattis approach. It is proven rigorously that the ground state of the model is nondegenerate and excitations are gapless at all band fillings.

Locations

arXiv (Cornell University) - View - PDF
DataCite API - View
Physical Review B - View

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