Optical and Quantum Sensing and Precision Metrology II

Cavity-atom arrays for network enabled optical clocks

Aishwarya Kumar

Published Mar 5, 2026• 0 citations

Abstract

Alkaline-earth tweezer arrays have emerged as a powerful technology for both quantum computing and sensing, due to several internal degrees of freedom for flexible error-correction, and optical clock transitions. Efficient and scalable coupling of single atoms in an array to single photons is a major outstanding challenge. With alkaline earth atoms, such an interface would enable error-correction and quantum networking of optical clocks. I will describe a new kind of macroscopic lens based optical resonator which can have wavelength scale mode waists, and thus strong coupling even at very low finesse. I will show how to make arrays of such resonators, naturally well-suited for coupling with atom arrays – in the context of our efforts to make “cavity-atom arrays” of Ytterbium, providing a scalable and parallel link to single photons, for error-corrected sensing, as well as networking of atomic clocks.

DOI: 10.1117/12.3089724

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