00-173 Luca Salasnich (INFM and Univ. Milano)

Resonances and Chaos in the Collective Oscillations of a Trapped Bose Condensate (947K, Latex, 3 postscript figures) Apr 9, 00

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Abstract. We investigate the collective oscillations of a Bose condensate in an anisotropic harmonic trap. We analytically calculate the values of the trap deformation for which the normal modes are in resonance. In presence of low-order resonances, the amplitude dependence of frequencies is strongly enhanced. We also study the transition to chaos of the collective modes as a function of the trap anisotropy. Published in Phys. Lett. A 266 (2000) 187-192.

Files: 00-173.tex