https://doi.org/10.1140/epjb/e2005-00373-2
Random phases in Bose-Einstein condensates with higher order nonlinearities
Department of Physics, Umeå University, 901 87 Umeå,
Sweden Institut für Theoretische Physik IV, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
Corresponding author: a mattias.marklund@physics.umu.se
Received:
25
May
2005
Revised:
17
July
2005
Published online:
9
December
2005
We present a statistical description of Bose-Einstein condensates with general higher order nonlinearities. In particular, we investigate the case of cubic-quintic nonlinearities, of particular interest for dilute condensates. The implication of decoherence for the stability properties of the condensate is discussed.
PACS: 03.75.Lm – Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices and topological excitations / 05.45.-a – Nonlinear dynamics and nonlinear dynamical systems / 67.40.Vs – Vortices and turbulence / 67.57.De – Superflow and hydrodynamics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005
