Bulletin of the American Physical Society
55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, June 3–7, 2024; Fort Worth, Texas
Session R09: Spinor Gases and Ultracold Atomic Mixtures
2:00 PM–4:00 PM,
Thursday, June 6, 2024
Room: 203C
Chair: Matthew Eiles, Max Planck Institute for the Physics of Complex Systems
Abstract: R09.00001 : Strongly magnetic spinor bose gases under control*
2:00 PM–2:12 PM
Presenter:
Arfor J Houwman
(Universität Innsbruck)
Authors:
Arfor J Houwman
(Universität Innsbruck)
Louis Lafforgue
(Universität Innsbruck)
Manfred J Mark
(Universität Innsbruck)
Ferdinand Claude
(Universität Innsbruck)
Francesca Ferlaino
(Universität Innsbruck)
Here we showcase a novel way of manipulating the spin degree of freedom by means of a laser tuned to a clock-like transition present in Erbium at 1299nm. Mixtures of arbitrary Zeeman levels are created by applying a series of pulses with different polarisation. In these mixtures, new Feshbach resonances have been observed, which can be used as benchmarks for quantum scattering calculations and as a tool to tune inter- and intraspecies contact interactions.
Furthermore, we show that spin-exchange, mediated by strong dipole-dipole interactions in erbium, can be turned off at will using AC-Stark shifts generated by the same laser. This effectively adds the possibility to limit the spin dynamics to subsets of the complete spin-manifold.
*NextGeneration EU grant AQuSIM by the Austrian Research Promotion Agency FFG (No. FO999896041)Austrian Science Fund (FWF) DK-ALM (No. W1259-N27)
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