Fermion zero mode and superfluid weight
Strongly Correlated Electrons
2009-11-13 v3 Superconductivity
Abstract
We propose one possible mechanism for deconfinement based on an SU(2) slave-boson theory. Resorting to an effective field theory approach, we show that introduction of an isospin interaction potential gives rise to a fermion zero mode in an instanton-hedgehog configuration. As a result, meron-type vortices are allowed. We demonstrate how emergence of such vortices results in the doping-independent decreasing ratio of superfluid weight.
Cite
@article{arxiv.0804.0416,
title = {Fermion zero mode and superfluid weight},
author = {Ki-Seok Kim},
journal= {arXiv preprint arXiv:0804.0416},
year = {2009}
}