175 citations · 333 across the 7 of their papers we have counts for
6 papers · 1 filter
Normal state of highly polarized Fermi gases: Full many-body treatment
R. Combescot, S. Giraud
We consider a single \down atom within a Fermi sea of \up atoms. We elucidate by a full many-body analysis the quite mysterious agreement between Monte-Carlo results and approximat…
Axial collective excitations of a degenerate Fermi gas in the BEC to unitarity crossover
R. Combescot, X. Leyronas
We show that, with reasonable hypotheses leading to a simple modeling,a link can be obtained from experiments on the axial low frequency collective modes between the molecular scat…
Comment on "Collective excitations of a degenerate gas at the BEC-BCS crossover"
R. Combescot, X. Leyronas
Very recent experiments have studied for the first time collective excitations of an ultracold Li gas covering in particular the BEC-BCS crossover domain. We point out that the…
Hydrodynamic modes of a 1D trapped Bose gas
J. N. Fuchs, X. Leyronas, R. Combescot
We consider two regimes where a trapped Bose gas behaves as a one-dimensional system. In the first one the Bose gas is microscopically described by 3D mean field theory, but the tr…
Shift of the molecular bound state threshold in dense ultracold Fermi gases with Feshbach resonance
R. Combescot
We consider a dense ultracold Fermi gas in the presence of a Feshbach resonance. We investigate how the treshold for bound state formation, which is just at the Feshbach resonance…
Feshbach resonance in dense ultracold Fermi gases
R. Combescot
We propose a coherent framework allowing to deal with many-body effects in dense ultracold Fermi gases in the presence of a Feshbach resonance. We show that the simple effect of Pa…