Nonadiabatic Molecular Association in Thermal Gases Driven by Radio-Frequency 
Pulses

Giannakeas, Panagiotis; Khaykovich, L.; Rost, Jan M.; Greene, Chris H.

doi:10.1103/PhysRevLett.123.043204

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Nonadiabatic Molecular Association in Thermal Gases Driven by Radio-Frequency Pulses

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Giannakeas, Panagiotis
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Rost, Jan M.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Giannakeas, P., Khaykovich, L., Rost, J. M., & Greene, C. H. (2019). Nonadiabatic Molecular Association in Thermal Gases Driven by Radio-Frequency Pulses. Physical Review Letters, 123(4): 043204. doi:10.1103/PhysRevLett.123.043204.

Cite as: https://hdl.handle.net/21.11116/0000-0004-CE6E-A

Abstract

The molecular association process in a thermal gas of Rb-85 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 Stuckelberg 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.