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Contactless nonlinear optics mediated by long-range Rydberg interactions

Busche, Hannes; Huillery, Paul; Ball, Simon W.; Ilieva, Teodora; Jones, Matthew P.A.; Adams, Charles S.

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Authors

Hannes Busche

Paul Huillery

Simon W. Ball

Teodora Ilieva



Abstract

In conventional nonlinear optics, linear quantum optics1, 2, and cavity quantum electrodynamics3, 4 to create effective photon–photon interactions photons must have, at one time, interacted with matter inside a common medium. In contrast, in Rydberg quantum optics5, 6, 7, 8, 9, 10, optical photons are coherently and reversibly mapped onto collective atomic Rydberg excitations11, giving rise to dipole-mediated effective photon–photon interactions that are long range12, 13. Consequently, a spatial overlap between the light modes is no longer required. We demonstrate such a contactless coupling between photons stored as collective Rydberg excitations in spatially separate optical media. The potential induced by each photon modifies the retrieval mode of its neighbour7, 9, 14, 15, leading to correlations between them. We measure these correlations as a function of interaction strength, distance and storage time, demonstrating an effective interaction between photons separated by 15 times their wavelength. Contactless effective photon–photon interactions16 are relevant for scalable multichannel photonic devices15, 17 and the study of strongly correlated many-body dynamics using light18.

Citation

Busche, H., Huillery, P., Ball, S. W., Ilieva, T., Jones, M. P., & Adams, C. S. (2017). Contactless nonlinear optics mediated by long-range Rydberg interactions. Nature Physics, 13(7), 655-658. https://doi.org/10.1038/nphys4058

Journal Article Type Article
Acceptance Date Feb 7, 2017
Online Publication Date Mar 6, 2017
Publication Date Mar 6, 2017
Deposit Date Mar 6, 2017
Publicly Available Date Mar 29, 2024
Journal Nature Physics
Print ISSN 1745-2473
Electronic ISSN 1745-2481
Publisher Nature Research
Peer Reviewed Peer Reviewed
Volume 13
Issue 7
Pages 655-658
DOI https://doi.org/10.1038/nphys4058

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