We develop a time-dependent mean-field theory to investigate the released momentum distribution and the released energy of an ultracold Fermi gas in the BCS-BEC crossover after the scattering length has been set to zero by a fast magnetic-field ramp. For a homogeneous gas we analyze the nonequilibrium dynamics of the system as a function of the interaction strength and of the ramp speed. For a trapped gas the theoretical predictions are compared with experimental results.
|Autori:||Chiofalo, MARIA LUISA; Giorgini, S; Holland, M.|
|Titolo:||Released momentum distribution of a Fermi gas in the BCS-BEC crossover|
|Anno del prodotto:||2006|
|Digital Object Identifier (DOI):||10.1103/PhysRevLett.97.070404|
|Appare nelle tipologie:||1.1 Articolo in rivista|