Pairing in spin polarized two-species fermionic mixtures with mass asymmetry
Superconductivity
2009-12-29 v2 Other Condensed Matter
Atomic Physics
Abstract
We discuss on the pairing mechanism of fermions with mismatch in their fermi momenta due to a mass asymmetry. Using a variational ansatz for the ground state we also discuss the BCS -BEC crossover of this system. It is shown that the breached pairing solution with a single fermi surface is stable in the BEC regime. We also include the temperatures effect on the fermion pairing within an approximation that is valid for temperatures much below the critical temperature.
Keywords
Cite
@article{arxiv.0805.1784,
title = {Pairing in spin polarized two-species fermionic mixtures with mass asymmetry},
author = {S. A. Silotri and D. Angom and H. Mishra and Amruta Mishra},
journal= {arXiv preprint arXiv:0805.1784},
year = {2009}
}
Comments
8 pages and 6 figures, few typos corrected, version to appear in EPJD