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arXiv · 2310.17090

Increased Atom-Cavity Coupling through Cooling-Induced Atomic Reorganization

Chi Shu·Simone Colombo·Zeyang Li·Albert Adiyatullin·Enrique Mendez·Edwin Pedrozo-Peñafiel·Vladan Vuletić
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Abstract

The strong coupling of atoms to optical cavities can improve optical lattice clocks as the cavity enables metrologically useful collective atomic entanglement and high-fidelity measurement. To this end, it is necessary to cool the ensemble to suppress motional broadening, and advantageous to maximize and homogenize the atom-cavity coupling. We demonstrate resolved Raman sideband cooling via the cavity as a method that can simultaneously achieve both goals. In 200 ms, we cool 171Yb atoms to an average vibration number = 0.23(7) in the tightly binding direction, resulting in 93% optical {\pi}-pulse fidelity on the clock transition 1S0 -> 3P0. During cooling, the atoms self-organize into locations with maximal atom-cavity-coupling, which will improve quantum metrology applications.

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Chi Shu, Simone Colombo, Zeyang Li, Albert Adiyatullin, Enrique Mendez, Edwin Pedrozo-Peñafiel, Vladan Vuletić. 2023-10-15. Increased Atom-Cavity Coupling through Cooling-Induced Atomic Reorganization. https://arxiv.org/abs/2310.17090

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