First observation of the quantized exciton-polariton field and effect of interactions on a single polariton.
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Authors
Cuevas, ÁlvaroLópez Carreño, Juan Camilo
Silva, Blanca
De Giorgi, Milena
Suárez-Forero, Daniel G
Sánchez Muñoz, Carlos
Fieramosca, Antonio
Cardano, Filippo
Marrucci, Lorenzo
Tasco, Vittorianna
Biasiol, Giorgio
del Valle, Elena
Dominici, Lorenzo
Ballarini, Dario
Gigli, Giuseppe
Mataloni, Paolo
Laussy, Fabrice P
Sciarrino, Fabio
Sanvitto, Daniele
Issue Date
2018-04-20
Metadata
Show full item recordAbstract
Polaritons are quasi-particles that originate from the coupling of light with matter and that demonstrate quantum phenomena at the many-particle mesoscopic level, such as Bose-Einstein condensation and superfluidity. A highly sought and long-time missing feature of polaritons is a genuine quantum manifestation of their dynamics at the single-particle level. Although they are conceptually perceived as entangled states and theoretical proposals abound for an explicit manifestation of their single-particle properties, so far their behavior has remained fully accounted for by classical and mean-field theories. We report the first experimental demonstration of a genuinely quantum state of the microcavity polariton field, by swapping a photon for a polariton in a two-photon entangled state generated by parametric downconversion. When bringing this single-polariton quantum state in contact with a polariton condensate, we observe a disentangling with the external photon. This manifestation of a polariton quantum state involving a single quantum unlocks new possibilities for quantum information processing with interacting bosons.Citation
Cuevas, Á, Carreño, JCL, Silva, B, De Giorgi, M, Suárez-Forero, DG, Muñoz, CS, Fieramosca, A, Cardano, F, Marrucci, L, Tasco, V, Biasiol, G, Del Valle, E, Dominici, L, Ballarini, D, Gigli, G, Mataloni, P, Laussy, FP, Sciarrino, F, Sanvitto, D. (2018) 'First observation of the quantized exciton-polariton field and effect of interactions on a single polariton', Science Advances, 4 (4) eaao6814 doi: 10.1126/sciadv.aao6814Publisher
AAASJournal
Science AdvancesPubMed ID
29725616Additional Links
https://advances.sciencemag.org/content/4/4/eaao6814Type
Journal articleLanguage
enDescription
© 2018 The Authors. Published by Science. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://doi.org/10.1126/sciadv.aao6814ISSN
2375-2548ae974a485f413a2113503eed53cd6c53
10.1126/sciadv.aao6814
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- Creative Commons
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc/4.0/
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