Quasi-condensation in two-dimensional Fermi gases
Quantum Gases
2015-12-16 v1
Abstract
In this paper we follow the analysis and protocols of recent experiments, combined with simple theory, to arrive at a physical understanding of quasi-condensation in two dimensional Fermi gases. We find that quasi-condensation mirrors Berezinskii-Kosterlitz-Thouless behavior in many ways, including the emergence of a strong zero momentum peak in the pair momentum distribution. Importantly, the disappearance of this quasi-condensate occurs at a reasonably well defined crossover temperature. The resulting phase diagram, pair momentum distribution, and algebraic power law decay are compatible with recent experiments throughout the continuum from BEC to BCS.
Keywords
Cite
@article{arxiv.1509.00857,
title = {Quasi-condensation in two-dimensional Fermi gases},
author = {Chien-Te Wu and Brandon M. Anderson and Rufus Boyack and K. Levin},
journal= {arXiv preprint arXiv:1509.00857},
year = {2015}
}