August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【404】Observation of confinement-induced resonances in a 3D lattice

Aug 31, 2021, 2:15 PM
Room E

Room E

Talk Atomic Physics and Quantum Optics Atomic Physics and Quantum Optics


Deborah Capecchi (University of Innsbruck-Institut of experimental physics)


We report on the observation of confinement-induced resonances (CIRs) for strong zero-dimensional (0D) confinement in a three-dimensional (3D) optical lattice potential. Starting from a Mott-insulator state with mainly single-site occupancy, we detect loss and heating features at specific values for the confinement length scale and the 3D scattering length. Two independent models, describing 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 show that CIRs exist for any dimensionality and open up a new method for interaction tuning and controlled molecule formation under strong 0D confinement.

Primary authors

Deborah Capecchi (University of Innsbruck-Institut of experimental physics) Prof. Hanns-Christoph Nägerl (University of Innsbruck)


Camilo Cantillano (University of Innsbruck) Dr Manfred Mark Dr Florian Meinert Dr Andreas Schindewolf Dr Manuele Landini (University of Innsbruck) Prof. Alejandro Saenz Prof. Fabio Revuelta

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