Floquet-driven crossover from density-assisted tunneling to enhanced pair tunneling

• URL: http://arxiv.org/abs/2404.08482v1
• Date: Fri, 12 Apr 2024 14:02:57 GMT
• Title: Floquet-driven crossover from density-assisted tunneling to enhanced pair tunneling
• Authors: Nick Klemmer, Janek Fleper, Valentin Jonas, Ameneh Sheikhan, Corinna Kollath, Michael Köhl, Andrea Bergschneider,
• Abstract summary: We show that the pair tunneling rate can be enhanced not only compared to the Floquet-reduced single-particle tunneling but even beyond the static superexchange rate. This opens possibilities to realize models with explicit pair tunneling in ultracold atomic systems.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate the experimental control of pair tunneling in a double-well potential using Floquet engineering. We demonstrate a crossover from a regime with density-assisted tunneling to dominant pair tunneling by tuning the effective interactions. Furthermore, we show that the pair tunneling rate can be enhanced not only compared to the Floquet-reduced single-particle tunneling but even beyond the static superexchange rate, while keeping the effective interaction in a relevant range. This opens possibilities to realize models with explicit pair tunneling in ultracold atomic systems.

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