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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

Depositor

B. Mukherjee

Date Uploaded

23 October 2024, 22:10:39

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