70 citations · 77 across the 2 of their papers we have counts for
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High sensitivity phonon spectroscopy of Bose-Einstein condensates using matter-wave interference
N. Katz, R. Ozeri, J. Steinhauer +3
We study low momentum excitations of a Bose-Einstein condensate using a novel matter-wave interference technique. In time-of-flight expansion images we observe strong matter-wave f…
Role of transverse excitations in the instability of Bose-Einstein condensates moving in optical lattices
M. Modugno, C. Tozzo, F. Dalfovo
The occurrence of energetic and dynamical instabilities in a Bose-Einstein condensate moving in a one-dimensional (1D) optical lattice is analyzed by means of the Gross-Pitaevskii…
The fate of phonons in freely expanding Bose-Einstein condensates
Cesare Tozzo, Franco Dalfovo
Phonon-like excitations can be imprinted into a trapped Bose-Einstein condensate of cold atoms using light scattering. If the condensate is suddenly let to freely expand, the initi…
Bogoliubov spectrum and Bragg spectroscopy of elongated Bose-Einstein condensates
Cesare Tozzo, Franco Dalfovo
The behavior of the momentum transferred to a trapped Bose-Einstein condensate by a two-photon Bragg pulse reflects the structure of the underlying Bogoliubov spectrum. In elongate…