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arXiv · 1903.01389

Non-adiabatic molecular association in thermal gases driven by radio-frequency pulses

P. Giannakeas·L. Khaykovich·Jan-Michael Rost·Chris H. Greene
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Abstract

The molecular association process in a thermal gas of $^{85}$Rb is investigated where the effects of the envelope of the radio-frequency field are taken into account. For experimentally relevant parameters our analysis shows that with increasing pulse length the corresponding molecular conversion efficiency exhibits low-frequency interference fringes which are robust under thermal averaging over a wide range of temperatures. This dynamical interference phenomenon is attributed to Stückelberg phase accumulation between the low-energy continuum states and the dressed molecular state which exhibits a shift proportional to the envelope of the radio-frequency pulse intensity.

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P. Giannakeas, L. Khaykovich, Jan-Michael Rost, Chris H. Greene. 2019-05-27. Non-adiabatic molecular association in thermal gases driven by radio-frequency pulses. https://doi.org/10.1103/physrevlett.123.043204

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