4 papers
Stability and Decay of Macrovortices in Rotating Bose Gases Beyond Mean Field
Paolo Molignini, M. A. Caracanhas, V. S. Bagnato +1
We study the formation, stability, and decay of macrovortices in a rotating Bose gas confined by a Mexican-hat potential with a multiconfigurational ansatz. By systematically inclu…
Evolution of density variations in a trapped atomic superfluid driven into turbulence
Michelle A. Moreno-Armijos, Leandro Machado, Arnol D. García-Orozco +3
In this work, we study the free decay of a turbulent trapped Bose gas by analyzing the temporal evolution of density variations extracted from absorption images. We introduce a par…
Nonlinear coherent modes and atom optics
V. I. Yukalov, E. P. Yukalova, V. S. Bagnato
By pumping energy into a trapped Bose-Einstein condensate it is possible to generate nonlinear coherent modes representing non-ground-state condensates. A Bose-condensed system of…
Spectroscopy of collective modes in a Bose-Einstein condensate: From single to double excitation periods
Leandro A. Machado, Lucas Madeira, Mônica A. Caracanhas +1
Collective modes are coherent excitations in Bose-Einstein condensates (BECs), and their study provides insight into the macroscopic quantum phenomena that govern these systems. Co…