Fluctuation induced non-canonical BCS states: a mechanism for pseudogap
Superconductivity
2011-01-21 v2 Quantum Physics
Abstract
We pose the question of what effect the statistical fluctuation causes if it induces a non-unitary evolution. We apply this idea to the BCS model and study fluctuation around the mean-field average. We find that, dynamics of the thermalization influences the equilibrium besides the non-unitary evolution, and the resulting equilibrium state is no longer the canonical one. The pseudogap phenomenon can exist in this model.
Keywords
Cite
@article{arxiv.1101.0247,
title = {Fluctuation induced non-canonical BCS states: a mechanism for pseudogap},
author = {Lei Gu},
journal= {arXiv preprint arXiv:1101.0247},
year = {2011}
}
Comments
3 pages, no figures