Effective Field Theory for a p-wave Superconductor in the Subgap Regime
Strongly Correlated Electrons
2015-03-05 v1 High Energy Physics - Theory
Abstract
We construct an effective field theory for the 2d spineless p-wave paired superconductor that faithfully describes the topological properties of the bulk state, and also provides a model for the subgap states at vortex cores and edges. In particular it captures the topologically protected zero modes and has the correct ground state degeneracy on the torus. We also show that our effective field theory becomes a topological field theory in a well defined scaling limit and that the vortices have the expected non-abelian braiding statistics.
Keywords
Cite
@article{arxiv.1410.2684,
title = {Effective Field Theory for a p-wave Superconductor in the Subgap Regime},
author = {Thors Hans Hansson and Thomas Kvorning and V. Parameswaran Nair and G. J. Sreejith},
journal= {arXiv preprint arXiv:1410.2684},
year = {2015}
}