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Scattering in Mixed Dimensions with Ultracold Gases

2010; American Physical Society; Volume: 104; Issue: 15 Linguagem: Inglês

10.1103/physrevlett.104.153202

1092-0145

Giacomo Lamporesi, Jacopo Catani, Giovanni Barontini, Yusuke Nishida, M. Inguscio, F. Minardi,

Spectroscopy and Laser Applications

We experimentally investigate the mix-dimensional scattering occurring when the collisional partners live in different dimensions. We employ a binary mixture of ultracold atoms and exploit a species-selective 1D optical lattice to confine only one atomic species in 2D. By applying an external magnetic field in proximity of a Feshbach resonance, we adjust the free-space scattering length to observe a series of resonances in mixed dimensions. By monitoring 3-body inelastic losses, we measure the magnetic field values corresponding to the mix-dimensional scattering resonances and find a good agreement with the theoretical predictions based on simple energy considerations.