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Emulating optical cycling centers in polyatomic molecules
Li, M Kłos, J Petrov, A Kotochigova, S
Li, M
Kłos, J
Petrov, A
Kotochigova, S
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Journal Article
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2019-12-01
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10.1038/s42005-019-0245-2
Abstract
© 2019, The Author(s). An optical cycling center (OCC) is a recently coined term to indicate two electronic states within a complex quantum object that can repeatedly experience optical laser excitation and spontaneous decay, while being well isolated from its environment. Here we present a quantitative understanding of electronic, vibrational, and rotational excitations of the polyatomic SrOH molecule, which possesses a localized OCC near its Sr atom. In particular, we describe the vibrationally dependent trends in the Franck–Condon factors of the bending and stretching modes of the molecular electronic states coupled in the optical transition. These simulations required us to perform electronic structure calculations of the multi-dimensional potential energy surfaces of both ground and excited states, the determination of vibrational and bending modes, and corresponding Franck–Condon factors. We also discuss the extent to which the optical cycling center has diagonal Franck–Condon factors.
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Springer Science and Business Media LLC
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Communications Physics
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