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

• URL: http://arxiv.org/abs/2607.21515v1
• Date: Thu, 23 Jul 2026 17:00:37 GMT
• Title: Extended Single-Atom Tweezer Arrays in High-Cooperativity Cavity-QED
• Abstract summary: A central challenge for cavity-QED-based quantum technologies is to make high-cooperativity optical interfaces compatible with site-resolved arrays of single atoms.<n>Here, we demonstrate optical tweezer arrays of individual $87$Rb atoms inside a fiber Fabry-Perot microcavity with single-atom cooperativity.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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.

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