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.
Original language | English |
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Article number | 053850 |
Journal | Physical Review A |
Volume | 100 |
Issue number | 5 |
Number of pages | 9 |
ISSN | 2469-9926 |
DOIs | |
Publication status | Published - 22 Nov 2019 |