Radio-Frequency Transitions on Weakly Bound Ultracold Molecules

Published

January 1, 2005

Author(s)

C Chin, Paul S. Julienne

Abstract

We show that radio-frequency spectroscopy on weakly-bound molecules is a powerful and sensitive tool to probe molecular energy structure as well as atomic scattering properties. An analytic expression of the rf excitation lineshape is derived, which in general contains a bound-free component and a bound-bound component. In particular, we show that the bound-free process strongly depends on the sign of the scattering length in the outgoing channel and acquires a Fano-type profile near a Feshbach resonance. The derived lineshapes provide an excellent t to both the numerical calculation and the experimental measurements.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

71

Issue

No 1

Pub Type

Journals

Keywords

Feshbach resonance, lineshape, lithium, radio frequency spectroscopy, scattering length, ultracold molecule

Citation

Chin, C. and Julienne, P. (2005), Radio-Frequency Transitions on Weakly Bound Ultracold Molecules, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed October 12, 2025)