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AC Stark effect in ultracold polar 87Rb133Cs molecules.

Gregory, P.D. and Blackmore, J.A. and Aldegunde, J. and Hutson, J.M. and Cornish, S.L. (2017) 'AC Stark effect in ultracold polar 87Rb133Cs molecules.', Physical review A., 96 (2). 021402(R).

Abstract

We investigate the effect of far-off-resonant trapping light on ultracold bosonic 87Rb133Cs molecules. We use kHz-precision microwave spectroscopy to measure the differential AC~Stark shifts between the ground and first excited rotational levels of the molecule with hyperfine-state resolution. We demonstrate through both experiment and theory that coupling between neighboring hyperfine states manifests in rich structure with many avoided crossings. This coupling may be tuned by rotating the polarization of the linearly polarized trapping light. A combination of spectroscopic and parametric heating measurements allows complete characterization of the molecule polarizability at a wavelength of 1550~nm in both the ground and first excited rotational states.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1103/PhysRevA.96.021402
Publisher statement:Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Date accepted:26 June 2017
Date deposited:15 August 2017
Date of first online publication:11 August 2017
Date first made open access:15 August 2017

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