Confinement effects on the stimulated dissociation of molecular BECs

Abstract

We show that a molecular BEC in a trap is stabilized against stimulated dissociation if the trap size is smaller than the resonance healing length $({\hslash }^2/2mg\sqrt{n}{)}^{1/2}$. The condensate shape determines the critical atom-molecule coupling frequency. We discuss an experiment for triggering dissociation by a sudden change of coupling or trap parameters. This effect demonstrates one of the unique collective features of 'superchemistry' in that the yield of a chemical reaction depends critically on the size and shape of the reaction vessel.

4 pages, 4 figures

References in corpus (4)

• Feshbach resonances in rubidium 87: Precision measurement and analysis
• Molecules of Fermionic Atoms in an Optical Lattice
• Atom-molecule dark states in a Bose-Einstein condensate
• Quantum Dynamics and Statistics Properties of Atom-Molecule Bose-Einstein Condensate

Cited by in corpus (7)

• Many-body theory for systems with particle conversion: Extending the multiconfigurational time-dependent Hartree method
• Spatial pair correlations of atoms in molecular dissociation
• Matter-wave squeezing and the generation of SU(1,1) and SU(2) coherent-states via Feshbach resonances
• Atom-atom correlations and relative number squeezing in dissociation of spatially inhomogeneous molecular condensates
• Quantum Noise in the Collective Abstraction Reaction A+B ${}_2\to$ AB+B
• Coherent bimolecular reactions with quantum-degenerate matter waves
• Confinement controlled dissociation of a molecular Bose-Einstein condensate