Radio-frequency dressing of multiple Feshbach resonances

Details Radio-frequency dressing of multiple Feshbach resonances Radio-frequency dressing of multiple Feshbach resonances

2009-06-30

arxiv.org/abs/0906.5587v3

Phys. Rev. A 80, 050701(R) (2009)

Physics

Condensed Matter

Quantum Gases

4+ pages, 3 figures, 1 table; revised introduction & references to reflect published version

Scientific paper

10.1103/PhysRevA.80.050701

We demonstrate and theoretically analyze the dressing of several proximate Feshbach resonances in Rb-87 using radio-frequency (rf) radiation. We present accurate measurements and characterizations of the resonances, and the dramatic changes in scattering properties that can arise through the rf dressing. Our scattering theory analysis yields quantitative agreement with the experimental data. We also present a simple interpretation of our results in terms of rf-coupled bound states interacting with the collision threshold.

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