Towards a Room-Temperature Spin-Photon Interface based on Nitrogen-Vacancy centers and Optomechanics

Abstract

The implementation of quantum networks involving quantum memories and photonic channels without the need for cryogenics would be a major technological breakthrough. Nitrogen-vacancy centers have excellent spin properties even at room temperature, but phonon-induced broadening makes it challenging to interface these spins with photons at non-cryogenic temperatures. Inspired by recent progress in achieving ultra-high mechanical quality factors, we propose that this challenge can be overcome by spin-opto-mechanical transduction. We quantify the coherence of the interface by calculating the indistinguishability of the emitted photons and describe promising paths towards experimental implementation.

5 pages, 2 figures

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• Proposal for room-temperature quantum repeaters with nitrogen-vacancy centers and optomechanics
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