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Dynamic structure factor and momentum distribution of a trapped Bose gas
F. Zambelli, L. P. Pitaevskii, D. M. Stamper-Kurn +1
The dynamic structure factor of a trapped Bose-Einstein condensed gas is investigated at zero temperature in the framework of Bogoliubov theory. Different values of momentum transf…
Kinetic energy of a trapped Fermi gas interacting with a Bose-Einstein condensate
L. Vichi, M. Amoruso, A. Minguzzi +2
We study a confined mixture of bosons and fermions in the regime of quantal degeneracy, with particular attention to the effects of the interactions on the kinetic energy of the fe…
Scissors mode and superfluidity of a trapped Bose-Einstein condensed gas
D. Guery-Odelin, S. Stringari
We investigate the oscillation of a dilute atomic gas generated by a sudden rotation of the confining trap (scissors mode). This oscillation reveals the effects of superfluidity ex…
Interference of Bose-Einstein condensates in momentum space
L. Pitaevskii, S. Stringari
We suggest an experiment to investigate the linear superposition of two spatially separated Bose-Einstein condensates. Due to the coherent combination of the two wave functions, th…
Collective oscillations of an interacting trapped Fermi gas
L. Vichi, S. Stringari
We calculate the effects of two-body interactions on the low frequency oscillations of a normal Fermi gas confined in a harmonic trap. The mean field contribution to the collective…