Measurement of the interaction energy near a Feshbach resonance in a 6Li Fermi gas

T. Bourdel, J. Cubizolles, L. Khaykovich, K. M.F. Magalhães, S. J.J.M.F. Kokkelmans, G. V. Shlyapnikov, C. Salomon

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Abstract

A study was conducted on a Fermi gas mixture in the strongly interacting regime near a Feshbach resonance. As such, new features were observed which may be the signature of richer physics. Anisotropic expansions were observed both for repulsive and attractive mean-field interactions, in a moderately degenerate Fermi gas. This was interpreted in terms of collisional hydrodynamics without invoking Fermi superfluidity.

Original languageEnglish
Pages (from-to)020402/1-020402/4
JournalPhysical Review Letters
Volume91
Issue number2
StatePublished - 11 Jul 2003
Externally publishedYes

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