Exploring Ultracold Collisions in Li 6 - Cr 53 Fermi Mixtures: Feshbach Resonances and Scattering Properties of a Novel Alkali-Transition Metal System - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2022

Exploring Ultracold Collisions in Li 6 - Cr 53 Fermi Mixtures: Feshbach Resonances and Scattering Properties of a Novel Alkali-Transition Metal System

Résumé

We investigate ultracold collisions in a novel mixture of Li6 and Cr53 fermionic atoms, discovering more than 50 interspecies Feshbach resonances via loss spectroscopy. Building a full coupled-channel model, we unambiguously characterize the Li6-Cr53 scattering properties and yield predictions for other isotopic pairs. In particular, we identify various Feshbach resonances that enable the controlled tuning of elastic s- and p-wave Li6-Cr53 interactions. Our studies thus make lithium-chromium mixtures emerge as optimally suited platforms for the experimental search of elusive few- and many-body regimes of highly correlated fermionic matter, and for the realization of a new class of ultracold polar molecules possessing both electric and magnetic dipole moments. © 2022 American Physical Society.

Dates et versions

hal-03810619 , version 1 (11-10-2022)

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A. Ciamei, S. Finelli, A. Trenkwalder, M. Inguscio, A. Simoni, et al.. Exploring Ultracold Collisions in Li 6 - Cr 53 Fermi Mixtures: Feshbach Resonances and Scattering Properties of a Novel Alkali-Transition Metal System. Physical Review Letters, 2022, 129 (9), pp.093402. ⟨10.1103/PhysRevLett.129.093402⟩. ⟨hal-03810619⟩
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