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

P. Giannakeas, L. Khaykovich, Jan Michael Rost, Chris H. Greene

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The molecular association process in a thermal gas of Rb85 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.

Original languageEnglish
Article number043204
JournalPhysical Review Letters
Issue number4
StatePublished - 26 Jul 2019

Bibliographical note

Publisher Copyright:
© 2019 American Physical Society.


This work has been supported in part by the U.S. National Science Foundation Grant No. PHY-1607180, the Israel Science Foundation (Grant No. 1340/16), and the United States–Israel Binational Science Foundation (BSF, Grant No. 2012504). The numerical calculations have been performed using NSF XSEDE Resource Allocation No. TG-PHY150003.

FundersFunder number
National Science FoundationPHY-1607180
Bloom's Syndrome Foundation2012504
United States-Israel Binational Science Foundation
Israel Science Foundation1340/16


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