English

The BCS-BEC Crossover

Quantum Gases 2017-08-23 v1

Abstract

This chapter presents the crossover from the Bardeen-Cooper-Schrieffer (BCS) state of weakly-correlated pairs of fermions to the Bose-Einstein condensation (BEC) of diatomic molecules in the atomic Fermi gas. Our aim is to provide a pedagogical review of the BCS-BEC crossover, with an emphasis on the basic concepts, particularly those that are not generally known or are difficult to find in the literature. We shall not attempt to give an exhaustive survey of current research in the limited space here; where possible, we will direct the reader to more extensive reviews.

Keywords

Cite

@article{arxiv.1402.5171,
  title  = {The BCS-BEC Crossover},
  author = {Meera M. Parish},
  journal= {arXiv preprint arXiv:1402.5171},
  year   = {2017}
}

Comments

19 pages, 6 figures. This article will be published as Chapter 9 in "Quantum gas experiments - exploring many-body states", edited by P. Torma and K. Sengstock, Imperial College Press, London, to be published 2014

R2 v1 2026-06-22T03:12:51.166Z