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arXiv:1907.09001 · Physical Review A

Superradiant parametric conversion of spin waves

Mateusz Mazelanik, Adam Leszczyński, Michał Lipka, Wojciech Wasilewski, Michal P. Parniak

Published Nov 22, 2019• 2 citations
arXivHTMLPDF

Abstract

Atomic-ensemble spin waves carrying single-photon Fock states exhibit nonclassical many-body correlations in between atoms. The same correlations are inherently associated with single-photon superradiance, forming the basis of a plethora of quantum light-matter interfaces. We devise a scheme allowing the preparation of spatially structured superradiant states in the atomic two-photon cascade using spin-wave light storage. We thus show that long-lived atomic ground-state spin waves can be converted to photon pairs, opening the way towards nonlinear optics of spin waves via multi-wave-mixing processes.

DOI
10.1103/physreva.100.053850

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