Quantifying Light-assisted Collisions in Optical Tweezers Across the Hyperfine Spectrum

• URL: http://arxiv.org/abs/2408.15359v1
• Date: Tue, 27 Aug 2024 18:41:40 GMT
• Title: Quantifying Light-assisted Collisions in Optical Tweezers Across the Hyperfine Spectrum
• Authors: Steven K. Pampel, Matteo Marinelli, Mark O. Brown, José P. D'Incao, Cindy A. Regal,
• Abstract summary: We investigate the role of hyperfine structure in resonant-dipole interactions between two atoms co-trapped in an optical tweezer. Our findings offer key insights for exploiting hyperfine structure in laser-induced collisions to control cold atoms and molecules.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate the role of hyperfine structure in resonant-dipole interactions between two atoms co-trapped in an optical tweezer. Two-body loss rates from light-assisted collisions (LACs) are measured across the $^{87}$Rb hyperfine spectrum and connected to properties of molecular photoassociation potentials via a semi-classical model. To obtain our results, we introduce an imaging technique that leverages repulsive LACs to detect two atoms in a trap, thereby circumventing parity constraints in tweezers. Our findings offer key insights for exploiting hyperfine structure in laser-induced collisions to control cold atoms and molecules in a broad range of quantum science applications.

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