What is a Cooper pair ?
Superconductivity
2007-05-23 v1
Abstract
Recently, the nature of Cooper pairs in the BCS-BEC crossover has regained attention due to the observation of a large fraction of preformed fermion pairs on the BCS side of the Feshbach resonance in ultracold atomic Fermi gases. While several theoretical explanations were proposed, the interpretations are still controversial. The root of the controversy is understanding what represents a Cooper pair in a correlated Fermi system. This paper discusses these issues at the most elementary level.
Keywords
Cite
@article{arxiv.cond-mat/0604236,
title = {What is a Cooper pair ?},
author = {G. Ortiz and J. Dukelsky},
journal= {arXiv preprint arXiv:cond-mat/0604236},
year = {2007}
}
Comments
Proccedings of the International Workshop on Condensed Matter Theories held in Japan (Sept. 2005)