Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local density approximation

Details Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local density approximation Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local density approximation

2010-04-30

arxiv.org/abs/1004.5443v2

Phys. Rev. A 82, 013627 (2010)

Physics

Condensed Matter

Quantum Gases

7 pages, 5 figures; published version in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.82.013627

We theoretically investigate the itinerant ferromagnetic transition of a spherically trapped ultracold Fermi gas with spin imbalance under strongly repulsive interatomic interactions. Our study is based on a self-consistent solution of the Hartree-Fock mean-field equations beyond the widely used local density approximation. We demonstrate that, while the local density approximation holds in the paramagnetic phase, after the ferromagnetic transition it leads to a quantitative discrepancy in various thermodynamic quantities even with large atom numbers. We determine the position of the phase transition by monitoring the shape change of the free energy curve with increasing the polarization at various interaction strengths.

Affiliated with

Also associated with

No associations

Rating

Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local density approximation 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 Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local density approximation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local density approximation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-387323