208 citations · 692 across the 6 of their papers we have counts for
6 papers · 1 filter
Landau dynamics of a grey soliton in a trapped condensate
Vladimir V. Konotop, Lev Pitaevskii
It is shown that grey soliton dynamics in an one-dimensional trap can be treated as Landau dynamics of a quasi-particle. A soliton of arbitrary amplitude moves in the trapping pote…
Effect of the Casimir-Polder force on the collective oscillations of a trapped Bose-Einstein condensate
Mauro Antezza, Lev P. Pitaevskii, Sandro Stringari
We calculate the effect of the interaction between an optically active material and a Bose-Einstein condensate on the collective oscillations of the condensate. We provide explicit…
Propagation of sound in a Bose Einstein condensate in an optical lattice
C. Menotti, M. Kramer, A. Smerzi +2
We study the propagation of sound waves in a Bose-Einstein condensate trapped in a one-dimensional optical lattice. We find that the velocity of propagation of sound wavepackets de…
Umklapp collisions and center of mass oscillation of a trapped Fermi gas
G. Orso, L. P. Pitaevskii, S. Stringari
Starting from the the Boltzmann equation, we study the center of mass oscillation of a harmonically trapped normal Fermi gas in the presence of a one-dimensional periodic potential…
Insulating Behavior of a Trapped Ideal Fermi Gas
L. Pezze', L. Pitaevskii, A. Smerzi +7
We investigate theoretically and experimentally the center-of-mass motion of an ideal Fermi gas in a combined periodic and harmonic potential. We find a crossover from a conducting…
Tkachenko oscillations and the compressibility of a rotating Bose gas
M. Cozzini, L. P. Pitaevskii, S. Stringari
The elastic oscillations of the vortex lattice of a cold Bose gas (Tkachenko modes) are shown to play a crucial role in the saturation of the compressibility sum rule, as a consequ…