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Interaction Potential for NaCs for Ultracold Scattering and Spectroscopy [dataset] Open Access

We obtain the interaction potential for NaCs by fitting to experiments on ultracold scattering and spectroscopy in optical tweezers. The central region of the potential has been accurately determined from Fourier transform spectroscopy at higher temperatures, so we focus on adjusting the long-range and short-range parts. We use coupled-channel calculations of binding energies and wave functions to understand the nature of the molecular states observed in ultracold spectroscopy and of the state that causes the Feshbach resonance used to create ultracold NaCs molecules. We elucidate the relationships between the experimental quantities and features of the interaction potential. We establish the combinations of experimental quantities that determine particular features of the potential. We find that the long-range dispersion coefficient C6 must be increased by about 0.9% to 3256(1)E_h a_0^6 to fit the experimental results. We use coupled-channel calculations on the final potential to predict bound-state energies and resonance positions.

Descriptions

Resource type
Dataset
Contributors
Creator: Brookes, Samuel 1
Creator: Hutson, Jeremy 1
1 Durham University, UK
Funder
U.K. Engineering and Physical Sciences Research Council (EPSRC)
Research methods
Other description
Keyword
NaCs
Ultracold scattering
Subject
Location
Language
Cited in
doi:10.1021/acs.jpca.2c01810
Identifier
ark:/32150/r13r074t95q
doi:10.15128/r13r074t95q
Rights
Creative Commons Attribution 4.0 International (CC BY)

Publisher
Durham University
Date Created

File Details

Depositor
S.G.H. Brookes
Date Uploaded
Date Modified
15 June 2022, 11:06:27
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File format: zip (ZIP Format)
Mime type: application/zip
File size: 1884427
Last modified: 2022:06:14 18:53:23+01:00
Filename: data_repository_nacs.zip
Original checksum: 489d686b3f1161d284663b262fb9015d
Activity of users you follow
User Activity Date
User N. Syrotiuk has updated Interaction Potential for NaCs for Ultracold Scattering and Spectroscopy [dataset] about 2 months ago
User N. Syrotiuk has updated Interaction Potential for NaCs for Ultracold Scattering and Spectroscopy [dataset] about 2 months ago