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Radiofrequency dressing of multiple Feshbach resonances

Published

Author(s)

A M. Kaufman, R P. Anderson, Thomas Hanna, Eite Tiesinga, Paul S. Julienne, D S. Hall

Abstract

We demonstrate and explain the coupling of several proximate Feshbach resonances in $^87}$Rb using radiofrequency (rf) radiation. We present accurate measurements of the resonances and observe the changes in the scattering properties that arise through the rf coupling. Our scattering theory analysis quantitatively agrees with the experimental data. We also present a simple interpretation of our results in terms of rf-coupled bound states interacting with the entrance channel threshold. Our work shows that rf radiation is useful as an extra degree of control in ultracold collisions.
Citation
Physical Review A
Volume
80

Keywords

ultracold gases, Feshbach resonances, Rb molecules, scattering theory

Citation

Kaufman, A. , Anderson, R. , Hanna, T. , Tiesinga, E. , Julienne, P. and Hall, D. (2009), Radiofrequency dressing of multiple Feshbach resonances, Physical Review A, [online], https://doi.org/10.1103/PhysRevA.80.050701, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903099 (Accessed March 1, 2024)
Created November 2, 2009, Updated October 12, 2021