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arXiv · 2401.15162

Collective dynamical Fermi suppression of optically-induced inelastic scattering

Camen A. Royse·J. Huang·J. E. Thomas
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Abstract

We observe strong dynamical suppression of optically induced loss in a weakly interacting Fermi gas as the $s$-wave scattering length is increased. The single, cigar-shaped cloud behaves as a large spin lattice in energy space with a tunable Heisenberg Hamiltonian. The loss suppression occurs as the lattice transitions into a magnetized state, where the fermionic nature of the atoms inhibits interactions. The data are quantitatively explained by incorporating spin-dependent loss into a quasi-classical collective spin vector model, the success of which enables the application of optical control of effective long-range interactions to this system.

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Camen A. Royse, J. Huang, J. E. Thomas. 2024-01-26. Collective dynamical Fermi suppression of optically-induced inelastic scattering. https://doi.org/10.1103/physrevlett.133.083404

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