Deterministic spin-photon entanglement from a trapped ion in a fiber Fabry-Perot cavity

2020/05/18 by Kobel, Pascal, Breyer, Moritz, Köhl, Michael · 2 citations
#FOS: Physical sciences #Quantum Physics (quant-ph)

paper · doi:10.48550/arxiv.2005.09124

Abstract

The development of efficient network nodes is a key element for the realisation of quantum networks which promise great capabilities as distributed quantum computing or provable secure communication. We report the realisation of a quantum network node using a trapped ion inside a fiber-based Fabry-Perot cavity. We show the generation of deterministic entanglement at a high fidelity of 91.2(2) % between a trapped Yb--ion and a photon emitted into the resonator mode. We achieve a success probability for generation and detection of entanglement for a single shot of 2.5 ⋅ 10^-3 resulting in 62 Hz entanglement rate.

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