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Controlling the ac Stark effect of RbCs with dc electric and magnetic fields

Blackmore, J.A.; Sawant, R.; Gregory, P.D.; Bromley, S.L.; Aldegunde, J.; Hutson, J.M.; Cornish, S.L.

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Authors

J.A. Blackmore

R. Sawant

Dr Phil Gregory p.d.gregory@durham.ac.uk
Assistant Professor - Royal Society University Research Fellow

S.L. Bromley

J. Aldegunde



Abstract

We investigate the effects of static electric and magnetic fields on the differential ac Stark shifts for microwave transitions in ultracold bosonic 87Rb133Cs molecules, for light of wavelength λ=1064nm. Near this wavelength we observe unexpected two-photon transitions that may cause trap loss. We measure the ac Stark effect in external magnetic and electric fields, using microwave spectroscopy of the first rotational transition. We quantify the isotropic and anisotropic parts of the molecular polarizability at this wavelength. We demonstrate that a modest electric field can decouple the nuclear spins from the rotational angular momentum, greatly simplifying the ac Stark effect. We use this simplification to control the ac Stark shift using the polarization angle of the trapping laser.

Citation

Blackmore, J., Sawant, R., Gregory, P., Bromley, S., Aldegunde, J., Hutson, J., & Cornish, S. (2020). Controlling the ac Stark effect of RbCs with dc electric and magnetic fields. Physical Review A, 102(5), Article 053316. https://doi.org/10.1103/physreva.102.053316

Journal Article Type Article
Acceptance Date Sep 15, 2020
Online Publication Date Nov 17, 2020
Publication Date 2020-11
Deposit Date Jul 20, 2020
Publicly Available Date Mar 29, 2024
Journal Physical Review A
Print ISSN 2469-9926
Electronic ISSN 2469-9934
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 102
Issue 5
Article Number 053316
DOI https://doi.org/10.1103/physreva.102.053316
Related Public URLs https://arxiv.org/abs/2007.01762

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Copyright Statement
Reprinted with permission from the American Physical Society: Blackmore, J.A., Sawant, R., Gregory, P.D., Bromley, S.L., Aldegunde, J., Hutson, J.M. & Cornish, S.L. (2020). Controlling the ac Stark effect of RbCs with dc electric and magnetic fields. Physical Review A 102(5): 053316 © 2020 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.





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