Microwave-induced Fano-Feshbach resonances

Abstract

We investigate the possibility to control the s-wave scattering length for the interaction between cold bosonic atoms by using a microwave field. Our scheme applies to any atomic species with a ground state that is split by hyperfine interaction. We discuss more specifically the case of alkali-metal atoms and calculate the change in the scattering length for 7Li, 23Na, 41K, 87Rb, and 133Cs. Our results yield optimistic prospects for experiments with the four latter species.

4 pages, 2 figures

References in corpus (7)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• Tuning the scattering length with an optically induced Feshbach resonance
• Feshbach resonances in rubidium 87: Precision measurement and analysis
• Potassium ground state scattering parameters and Born-Oppenheimer potentials from molecular spectroscopy
• Radio-frequency dressing of multiple Feshbach resonances
• Predicting scattering properties of ultracold atoms: adiabatic accumulated phase method and mass scaling

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