Graduate School in Nonlinear Science

Sponsored by the Danish Research Academy


MIDIT                               OFD                           CATS
Modelling, Nonlinear Dynamics       Optics and Fluid Dynamics     Chaos and Turbulence Studies
and Irreversible Thermodynamics     Risø National Laboratory      Niels Bohr Institute and 
Technical University of Denmark     Building 128                  Department of Chemistry
Building 321                        P.O. Box 49                   University of Copenhagen 
DK-2800 Lyngby                      DK-4000 Roskilde              DK-2100 Copenhagen Ø
Denmark                             Denmark                       Denmark

NONLINEAR MODES AND STABILITY OF TRAPPED BOSE-EINSTEIN CONDENSATES

by Tristram Alexander
Optical Sciences Centre
Australian National University
Canberra, Australia

MIDIT-seminar 468

Thursday October 14, 1999, 15.00 h
at MIDIT, IMM Building 305, room 027

Abstract:This talk will be a general introduction to the physics of Bose-Einstein condensation and its connections with the field of nonlinear optics. We consider the Bose-Einstein condensate in a parabolic trap as a macroscopic quantum oscillator and describe, analytically and numerically, its collective modes - a nonlinear generalisation of the (symmetric and antisymmetric) Hermite-Gauss eigenmodes of a harmonic quantum oscillator.