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

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

doi:https://doi.org/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

Bar-Ilan University

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

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

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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https://doi.org/10.1103/PhysRevLett.123.043204

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title = "Nonadiabatic Molecular Association in Thermal Gases Driven by Radio-Frequency Pulses",

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.",

author = "P. Giannakeas and L. Khaykovich and Rost, {Jan Michael} and Greene, {Chris H.}",

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N2 - 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.

AB - 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.

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

Abstract

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