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Long-range states and Feshbach resonances in collisions between ultracold alkali-metal diatomic molecules and atoms [dataset] Open Access

We consider the long-range states expected for complexes formed from an alkali-metal diatomic molecule in a singlet state and an alkali-metal atom. We explore the structure of the Hamiltonian for such systems, and the couplings between the six angular momenta that are present. We consider the patterns and densities of the long-range states, and the terms in the Hamiltonian that can cause Feshbach resonances when the states cross threshold as a function of magnetic field. We present a case study of $^{40}$K$^{87}$Rb+$^{87}$Rb. We show multiple types of resonance due to long-range states with rotational and/or hyperfine excitation, and consider the likelihood of them existing at low to moderate magnetic fields.

Descriptions

Resource type

Dataset

Contributors

Creator: Frye, Matthew D. ¹
Creator: Hutson, Jeremy M. ¹

¹ Durham University, UK

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Keyword

Ultracold scattering

Subject

Location

Language

Cited in

arxiv:2212.08030

Identifier

ark:/32150/r26682x399c
doi:10.15128/r26682x399c

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

M.D. Frye

Date Uploaded

28 March 2023, 20:03:20

Date Modified

30 March 2023, 10:03:04

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File format: zip (ZIP Format)

Mime type: application/zip

File size: 527779

Last modified: 2023:03:28 21:31:10+01:00

Filename: Repository_long_range.zip

Original checksum: 30d0aab1ae8318d62f986db4fd870483