Physics – Condensed Matter – Superconductivity
Scientific paper
2008-04-15
Phys.Rev.A78:063609,2008
Physics
Condensed Matter
Superconductivity
17 pages, 7 figures
Scientific paper
10.1103/PhysRevA.78.063609
We study the phase diagram of a two component Fermi system with a weak attractive interaction. Our analysis includes the leading order Hartree energy shifts and pairing correlations at finite temperature and chemical potential difference between the two fermion species. We show that in an asymmetric system, the Hartree shift to the single particle energies are important for the phase competition between normal and superfluid phase and can change the phase transition curve qualitatively. At large asymmetry we find that a novel but somewhat fragile superfluid state can be favored due to finite temperature effects. We also investigate the transition between the normal phase and an inhomogeneous superfluid phase to study how gradient instabilities evolve with temperature and asymmetry. Finally, we adopt our analysis to study the density profiles of similar asymmetric Fermi systems that are being observed in cold atom experiments.
Reddy Sanjay
Sharma Rishi
No associations
LandOfFree
A Mean Field Analysis of Pairing in Asymmetric Fermi Systems at Finite Temperature does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Mean Field Analysis of Pairing in Asymmetric Fermi Systems at Finite Temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Mean Field Analysis of Pairing in Asymmetric Fermi Systems at Finite Temperature will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-652431