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Hyperfine-resolved optical spectroscopy of ultracold 87Rb133Cs molecules: the b3Π0 metastable state [dataset] Open Access
Using an ultracold gas of 87Rb133Cs molecules, we perform hyperfine-resolved spectroscopy of transitions from the vibronic ground state to the lowest rovibrational states of the electronic state b3Π0 as a function of magnetic field. These transitions are spin forbidden, resulting in narrow linewidths, and feature near-diagonal Franck-Condon factors. We develop a model of the hyperfine and Zeeman structure that includes coupling between the 0+ and 0− components of b3Π0 . We fit the spectra to obtain rotational and hyperfine coupling constants. We measure transition dipole moments associated with specific transitions by directly observing Rabi oscillations as a function of a resonant laser pulse duration. Using resonant π pulses, we prepare molecules in the electronically excited state and directly measure the spontaneous emission rate.
Descriptions
- Resource type
- Dataset
- Contributors
- Creator:
Das, Arpita
1
Contact person: Das, Arpita 1
Data collector: Das, Arpita 1
Data collector: Tao, Albert Li 1
Data collector: Fernley, Luke M. 1
Data collector: Gierke, Fritz von 1
Data collector: Gregory, Philip D. 1
Contact person: Cornish, Simon L. 1
Data collector: Cornish, Simon L. 1
1 Durham University, UK
- Funder
-
Engineering and Physical Sciences Research Council
UKRI Frontier Research Grant
Royal Society
Durham University
- Research methods
- Other description
- Keyword
- Ultracold molecules
Hyperfine-resolved spectroscopy
Quantum science
- Subject
-
Ultracold molecules
- Location
- Language
- Cited in
- Identifier
- ark:/32150/r1p5547r50k
doi:10.15128/r1p5547r50k
- Rights
- Creative Commons Attribution 4.0 International (CC BY)
- Publisher
-
Durham University
- Date Created
File Details
- Depositor
- A. Das
- Date Uploaded
- 27 October 2025, 12:10:40
- Date Modified
- 5 February 2026, 11:02:49
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- Audits have not yet been run on this file.
- Characterization
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File format: zip (ZIP Format)
Mime type: application/zip
File size: 24009
Last modified: 2026:02:05 10:25:57+00:00
Filename: Dataset.zip
Original checksum: 432934bbbd95673600bfbcb1e9b7569d
| User Activity | Date |
|---|---|
| User A. Das has added a new version of Hyperfine-resolved optical spectroscopy of ultracold 87Rb133Cs molecules: the b3Π0 metastable state [dataset] | 3 months ago |