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SU(N) magnetism with ultracold molecules [dataset] Open Access

Quantum systems with SU(N) symmetry are paradigmatic settings for quantum many-body physics. They have been studied for the insights they provide into complex materials and their ability to stabilize exotic ground states. Ultracold alkaline-earth atoms were predicted to exhibit SU(N) symmetry for N = 2I +1 = 1, 2, . . . , 10, where I is the nuclear spin. Subsequent experiments have revealed rich many-body physics. However, alkaline-earth atoms realize this symmetry only for fermions with repulsive interactions. In this paper, we predict that ultracold molecules shielded from destructive collisions with static electric fields or microwaves exhibit SU(N) symmetry, which holds because deviations of the s-wave scattering length from the spin-free values are only about 3% for CaF with static-field shielding and are estimated to be even smaller for bialkali molecules. They open the door to N as large as 32 for bosons and 36 for fermions. They offer important features unachievable with atoms, including bosonic systems and attractive interactions.

Descriptions

Resource type

Dataset

Contributors

Creator: Mukherjee, Bijit ¹
Creator: Hutson, Jeremy M. ¹
Hazzard, Kaden R. A. ²

¹ Durham University, UK
² Rice University, USA

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Includes Fortran code and figure data files.

Keyword

Quantum magnetism
Ultracold molecules
Static electric field shielding

Subject

Location

Language

Cited in

Identifier

ark:/32150/r1hq37vn60c
doi:10.15128/r1hq37vn60c

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

B. Mukherjee

Date Uploaded

25 March 2024, 08:03:39

Date Modified

25 September 2024, 10:09:00

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Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 306220

Last modified: 2024:09:25 10:56:02+01:00

Filename: Data_for_repository.zip

Original checksum: 787e682de38f7004806e5f5d058a0a20