Extended Single-Atom Tweezer Arrays in High-Cooperativity Cavity-QED

Abstract:A central challenge for cavity-QED-based quantum technologies is to make high-cooperativity optical interfaces compatible with site-resolved arrays of single atoms. Here, we demonstrate optical tweezer arrays of individual $^{87}$Rb atoms inside a fiber Fabry-Perot microcavity with single-atom cooperativity $\mathcal{C} \sim 90$. We combine background-free site-resolved fluorescence imaging of extended arrays with collective coupling to a common cavity mode for arrays with a mean atom number up to $\bar{N} \simeq 36$. These results establish a high-cooperativity platform for many-body cavity-QED with site-resolved detection and control.

arXiv:2607.21515 [quant-ph]

(or arXiv:2607.21515v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2607.21515 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

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