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An Atomic Array Optical Clock with Single-atom Readout by Madjarov, Ivaylo S.; Cooper, Alexandre; Shaw, Adam L.; Covey, Jacob P.; Schkolnik, Vladimir; Yoon, Tai Hyun; Williams, Jason R.; Endres, Manuel is a scholarly article available to read on EtoBox.

What is An Atomic Array Optical Clock with Single-atom Readout about?

Currently, the most accurate and stable clocks use optical interrogation of either a single ion or an ensemble of neutral atoms confined in an optical lattice. Here, we demonstrate a new optical clock system based on an array of individually trapped neutral atoms with single-atom readout, merging many of the benefits of ion and lattice clocks as well as creating a bridge to recently developed techniques in quantum simulation and computing with neutral atoms. We evaluate single-site resolved frequency shifts and short-term stability via self-comparison. Atom-by-atom feedback control enables direct experimental estimation of laser noise contributions. Results agree well with an ab initio Monte Carlo simulation that incorporates finite temperature, projective read-out, laser noise, and feedback dynamics. Our approach, based on a tweezer array, also suppresses interaction shifts while retaining a short dead time, all in a comparatively simple experimental setup suited for transportable operation. These results establish the foundations for a third optical clock platform and provide a novel starting point for entanglement-enhanced metrology, quantum clock networks, and applications in q

Author

Madjarov, Ivaylo S.; Cooper, Alexandre; Shaw, Adam L.; Covey, Jacob P.; Schkolnik, Vladimir; Yoon, Tai Hyun; Williams, Jason R.; Endres, Manuel

Published

2019

Language

EN