Neutral Fermions at $\nu=1/2$
Mesoscale and Nanoscale Physics
2008-02-03 v4
Abstract
We present a particle-hole symmetric theory for a two-dimensional electron gas at filling factor one half. In this theory, elementary excitations are dipole-like fermions floating on top of the boson quantum Hall liquid. In the absence of disorder these dipoles can form a Fermi-liquid. Disorder can break them apart and drive the ground state into a quantum critical state.
Keywords
Cite
@article{arxiv.cond-mat/9709233,
title = {Neutral Fermions at $\nu=1/2$},
author = {Dung-Hai Lee},
journal= {arXiv preprint arXiv:cond-mat/9709233},
year = {2008}
}
Comments
An error in Eq.(11) is corrected