Scattering in Mixed Dimensions with Ultracold Gases

Year: 2010

Authors: Lamporesi G., Catani J., Barontini G., Nishida Y., Inguscio M., Minardi F.

Autors Affiliation: LENS-European Laboratory for Nonlinear Spectroscopy, Dipartimento di Fisica, Università di Firenze, via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy; Istituto Nazionale di Ottica (INO)-CNR, via Giovanni Sansone 1, I-50019 Sesto Fiorentino, Italy; Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, United States

Abstract: 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.


Volume: 104 (15)      Pages from: 153202  to: 153202

More Information: This work was supported by MIUR PRIN 2007, Ente CdR in Firenze, CNR under EuroQUAM DQS, EU under STREP CHIMONO and NAME-QUAM, and MIT Department of Physics Pappalardo Program. We thank M. Jona-Lasinio and the QDG group at LENS for fruitful discussions.
KeyWords: 1D optical lattice; Atomic species; Energy considerations; External magnetic field; Feshbach resonances; Free space; Scattering length; Scattering resonance; Theoretical prediction; Ultracold atoms; Ultracold gas, Binary mixtures; Electromagnetic field effects; Magnetic fields; Resonance, Scattering
DOI: 10.1103/PhysRevLett.104.153202

Citations: 112
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