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.
Originalsprog | Engelsk |
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Artikelnummer | 053850 |
Tidsskrift | Physical Review A |
Vol/bind | 100 |
Udgave nummer | 5 |
Antal sider | 9 |
ISSN | 2469-9926 |
DOI | |
Status | Udgivet - 22 nov. 2019 |