Expansion of an ultra-cold lithium gas in the BEC-BCS crossover - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2007

Expansion of an ultra-cold lithium gas in the BEC-BCS crossover

Résumé

We present an experimental study of the time of flight properties of a gas of ultra-cold fermions in the BEC-BCS crossover. Since interactions can be tuned by changing the value of the magnetic field, we are able to probe both non interacting and strongly interacting behaviors. These measurements allow us to characterize the momentum distribution of the system as well as its equation of state. We also demonstrate the breakdown of superfluid hydrodynamics in the weakly attractive region of the phase diagram, probably caused by pair breaking taking place during the expansion.
Fichier principal
Vignette du fichier
VarennaLi3CS.pdf (255.05 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00123470 , version 1 (09-01-2007)

Identifiants

Citer

Leticia Tarruell, Martin Teichmann, Jason Mckeever, Thomas Bourdel, Julien Cubizolles, et al.. Expansion of an ultra-cold lithium gas in the BEC-BCS crossover. 2007. ⟨hal-00123470⟩
114 Consultations
125 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More