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SU(N) symmetry with ultracold alkali dimers: weak dependence of scattering properties on hyperfine state [dataset] Open Access

We investigate the prospect of using ultracold alkali diatomic molecules to implement SU(N) symmetry. Experimentally accessible molecules offer large N for both bosonic and fermionic systems, with both attractive and repulsive interactions. We carry out coupled-channel calculations on pairs of NaK, NaRb and NaCs molecules that are shielded from destructive collisions with static electric fields. We develop new methods to handle the very large basis sets required to include nuclear spins. We show that all the molecules studied have the properties required for SU(N) symmetry: the collisions are principally elastic, and the scattering lengths depend only weakly on the spin states of the molecules. The rates of spin-changing inelastic collisions are very low. We develop and test a semiclassical model of the spin dependence and find that it performs well.

Descriptions

Resource type
Dataset
Contributors
Creator: Mukherjee, Bijit 1
Creator: Hutson, Jeremy M. 1
1 Durham University, UK
Funder
Research methods
Other description
Includes Fortran code and figure data files.
Keyword
Ultracold molecules
Ultracold shielding
SU(N) symmetry
Subject
Ultracold molecules
Location
Language
Cited in
Identifier
ark:/32150/r1n870zq88w
doi:10.15128/r1n870zq88w
Rights
Creative Commons Attribution 4.0 International (CC BY)

Publisher
Durham University
Date Created

File Details

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B. Mukherjee
Date Uploaded
Date Modified
24 October 2024, 09:10:34
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File format: zip (ZIP Format)
Mime type: application/zip
File size: 333111
Last modified: 2024:10:23 23:35:05+01:00
Filename: Data_for_repository.zip
Original checksum: d522e20012a1304e7a34bd3da4ed33b7
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User N. Syrotiuk has updated SU(N) symmetry with ultracold alkali dimers: weak dependence of scattering properties on hyperfine state [dataset] 2 days ago
User N. Syrotiuk has updated SU(N) symmetry with ultracold alkali dimers: weak dependence of scattering properties on hyperfine state [dataset] 2 days ago