Topological crossovers near a quantum critical point
Strongly Correlated Electrons
2011-08-22 v1
Abstract
We study the temperature evolution of the single-particle spectrum and quasiparticle momentum distribution of homogeneous strongly correlated Fermi systems beyond a point where the necessary condition for stability of the Landau state is violated, and the Fermi surface becomes multi-connected by virtue of a topological crossover. Attention is focused on the different non-Fermi-liquid temperature regimes experienced by a phase exhibiting a single additional hole pocket compared with the conventional Landau state. A critical experiment is proposed to elucidate the origin of NFL behavior in dense films of liquid He.
Cite
@article{arxiv.1105.2552,
title = {Topological crossovers near a quantum critical point},
author = {V. A. Khodel and J. W. Clark and M. V. Zverev},
journal= {arXiv preprint arXiv:1105.2552},
year = {2011}
}
Comments
7 pages, 6 figures