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Stability of Trapped Ultracold Fermi Gases Using Effective s- and p-Wave Contact-Interactions | R. Roth
; H. Feldmeier
; | Date: |
15 Mar 2000 | Journal: | Journal of Phys. B 33 (2000) L787 | Subject: | Statistical Mechanics; Atomic Physics | cond-mat.stat-mech physics.atom-ph | Abstract: | The stability of trapped dilute Fermi gases against collapse towards large densities is studied. A hermitian effective contact-interaction for all partial waves is derived, which is particularly suited for a mean-field description of these systems. Including the s- and p-wave parts explicit stability conditions and critical particle numbers are given as function of the scattering lengths. The p-wave contribution determines the stability of a single-component gas and can substantially modify the stability of a two-component gas. Moreover it may give rise to a novel p-wave stabilized high-density phase. | Source: | arXiv, cond-mat/0003266 | Services: | Forum | Review | PDF | Favorites |
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