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Controlling the ac Stark effect of RbCs with dc electric and magnetic fields [data and software] Open Access

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=1064 nm. 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.

Descriptions

Resource type

Dataset

Contributors

Creator: Blackmore, Jacob A ¹
Contact person: Blackmore, Jacob A ¹
Data collector: Blackmore, Jacob A ¹
Sawant,Rahul ²
Gregory, Phillip D ¹
Bromley, Sarah A ¹
Aldegunde, Jesus ³
Hutson, Jeremy M ¹
Contact person: Cornish, Simon L ¹

¹ Durham University, United Kingdom
² Birmingham University, United Kingdom
³ Universidad de Salamanca, Spain

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Keyword

RbCs
Stark Effect
Ultracold Molecules
Physics
ac Stark Effect
dc Stark Effect
Zeeman Effect
Hyperfine Structure
Atomic Physics
Molecular Physics

Subject

Molecular structure
Quantum theory
Physics
Hyperfine structure
Hyperfine interactions
Laser spectroscopy

Location

Durham

Language

English

Cited in

arxiv:2007.01762

Identifier

ark:/32150/r1gh93gz505
doi:10.15128/r1gh93gz505

Rights

Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA)

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

J.A. Blackmore

Date Uploaded

26 August 2020, 16:08:27

Date Modified

28 August 2020, 15:08:47

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File format: zip (ZIP Format)

Mime type: application/zip

File size: 69814629

Last modified: 2020:08:28 13:02:43+01:00

Filename: Data.zip

Original checksum: 0767afe570d2ef9af6c3f37a79dd781a