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Deutsche Physikalische Gessellschaft IOP Institute of Physics

Feshbach resonances and collapsing Bose-Einstein condensates

J N Milstein1, C Menotti2,3 and M J Holland1

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We investigate the quantum state of burst atoms seen in the recent Rb-85 experiments at JILA. We show that the presence of a resonance scattering state can lead to a pairing instability generating an outflow of atoms with energy comparable to that observed. A resonance effective field theory is used to study this dynamical process in an inhomogeneous system with spherical symmetry.


PACS

34.50.-s Scattering of atoms and molecules

03.75.Kk Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow

Subjects

Quantum gases, liquids and solids

Atomic and molecular physics

Dates

Issue 1 (May 2003)

Received 13 March 2003

Published 30 May 2003



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