Induced interactions and the superfluid transition temperature in a three-component Fermi gas
Quantum Gases
2015-05-14 v2 Superconductivity
Abstract
We study many-body contributions to the effective interaction between fermions in a three-component Fermi mixture. We find that effective interactions induced by the third component can lead to a phase diagram different from that predicted if interactions with the third component are neglected. As a result, in a confining potential a superfluid shell structure can arise even for equal populations of the components. We also find a critical temperature for the BCS transition in a 6Li mixture which can deviate strongly from the one in a weakly interacting two-component system.
Cite
@article{arxiv.0908.3733,
title = {Induced interactions and the superfluid transition temperature in a three-component Fermi gas},
author = {J. -P. Martikainen and J. J. Kinnunen and P. Torma and C. J. Pethick},
journal= {arXiv preprint arXiv:0908.3733},
year = {2015}
}
Comments
4 pages, 5 figures