342 citations · 1k across the 19 of their papers we have counts for
19 papers
Dynamics of a dark soliton in a curved 1D Bose-Einstein condensate
Jorge A. G. Attie, Emanuel A. L. Henn
We investigate the nonlinear dynamics of dark solitons in a one-dimensional Bose-Einstein condensate confined to a curved geometry. Using the Gross-Pitaevskii equation in curviline…
Ground state and collective excitations of a dipolar Bose-Einstein condensate in a bubble trap
Pedro de Castro Diniz, Eduardo Amâncio Barbosa Oliveira, Aristeu Rosendo Pontes Lima +1
We consider the ground state and the low-lying excitations of dipolar Bose-Einstein condensates in a bubble trap, i.e., a shell-shaped spherically symmetric confining potential. By…
Vortices in self-bound dipolar droplets
André Cidrim, Francisco E. A. dos Santos, Emanuel A. L. Henn +1
Quantized vortices have been observed in a variety of superfluid systems, from He to condensates of alkali-metal bosons and ultracold Fermi gases along the BEC-BCS crossover. I…
Thermodynamic measurement of the sound velocity of a Bose gas across the transition to Bose-Einstein condensation
A. R. Fritsch, P. E. S. Tavares, F. A. J. Vivanco +3
We present an alternative method for determining the sound velocity in atomic Bose-Einstein condensates, based on thermodynamic global variables. The total number of trapped atoms…
Nonlinear dependence observed in quadrupolar collective excitation of a trapped BEC
A. R. Fritsch, P. E. S. Tavares, Y. R. Tonin +4
We report the experimental observation of the collective excitations induced in a magnetically trapped 87Rb Bose-Einstein condensate. Low-lying mode excitations were studied by tra…
Investigation of the momentum distribution of an excited BEC by free expansion: coupling with collective modes
A. Bahrami, P. E. S Tavares, A. R. Fritsch +4
We investigate the evolution of the momentum distribution of a Bose-Einstein condensate subjected to an external small oscillatory perturbation as a function of the in-trap evoluti…