Nondissipative Drag Conductance as a Topological Quantum Number
Mesoscale and Nanoscale Physics
2009-10-31 v2 Strongly Correlated Electrons
Abstract
We show in this paper that the boundary condition averaged nondissipative drag conductance of two coupled mesoscopic rings with no tunneling, evaluated in a particular many-particle eigenstate, is a topological invariant characterized by a Chern integer. Physical implications of this observation are discussed.
Keywords
Cite
@article{arxiv.cond-mat/9904061,
title = {Nondissipative Drag Conductance as a Topological Quantum Number},
author = {Kun Yang and A. H. MacDonald},
journal= {arXiv preprint arXiv:cond-mat/9904061},
year = {2009}
}
Comments
4 pages, no figure. Title modified and significant revision made to the text. Final version appeared in PRB