Observation of confinement-induced resonances in a 3D lattice

Abstract

We report on the observation of confinement-induced resonances for strong three-dimensional (3D) confinement in a lattice potential. Starting from a Mott-insulator state with predominantly single-site occupancy, we detect loss and heating features at specific values for the confinement length and the 3D scattering length. Two independent models, based on the coupling between the center-of-mass and the relative motion of the particles as mediated by the lattice, predict the resonance positions to a good approximation, suggesting a universal behavior. Our results extend confinement-induced resonances to any dimensionality and open up an alternative method for interaction tuning and controlled molecule formation under strong 3D confinement.

9 pages, 5 figures

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Cited by in corpus (5)

• Observation of trap-assisted formation of atom-ion bound states
• Controlling the interactions in a cold atom quantum impurity system
• Spin dynamics dominated by superexchange via virtual molecules
• Confinement-Induced Resonances in Rabi-Coupled Bosonic Mixtures
• Confinement-induced resonances for the creation of quasi-one-dimensional ultra cold gases of alkali--alkaline-earth dimers