Accueil du site > Séminaires > LKB > Interacting Fermi gases : from superfluidity to spin transport
Séminaire de Olga Goulko (DAMTP, Cambridge, UK)
Vendredi 10 juin 2011, 9h15 salle de réunion du siège de l’IFRAF, au 4e étage du bâtiment Rataud, à l’ENS au 45 rue d’Ulm 75005 PARIS
Abstract :
The main part of the talk will be about a Boltzmann equation simulation of two colliding clouds of spin polarised fermions. This study was motivated by recent experiments performed at the MIT. When two clouds of fermions are separated in a cigar shaped trap and then released, they collide and for sufficiently strong interactions can bounce off each other several times. This phenomenon allows to study spin transport properties of an interacting Fermi gas. I will describe the numerical setup and discuss the different types of the qualitative behaviour. I will then show how they can be interpreted in terms of the equilibrium properties of the system, and how they relate to the coupling between different excitation modes.
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