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

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

doi:10.1103/PhysRevLett.123.043204

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

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

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 language	English
Article number	043204
Journal	Physical Review Letters
Volume	123
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.123.043204
State	Published - 26 Jul 2019

Bibliographical note

Publisher Copyright:
© 2019 American Physical Society.

Funding

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.

Funders	Funder number
National Science Foundation	PHY-1607180
Bloom's Syndrome Foundation	2012504
United States-Israel Binational Science Foundation
Israel Science Foundation	1340/16

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10.1103/PhysRevLett.123.043204

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abstract = "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 St{\"u}ckelberg 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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Nonadiabatic Molecular Association in Thermal Gases Driven by Radio-Frequency Pulses

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