Origin of strong photon antibunching in weakly nonlinear photonic molecules

Anno: 2011

Autori: Bamba M., Imamoglu A., Carusotto I., Ciuti C.

Affiliazione autori: Laboratoire Materiaux et Phenomenes Quantiques, Universite Paris Diderot-Paris 7 et CNRS, Batiment Condorcet, 10 rue Alice Domon et Leonie Duquet, F-75205 Paris Cedex 13, France; Institute of Quantum Electronics, ETH Zurich, CH-8093 Zuurich, Switzerland; INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, I-38123 Povo, Italy

Abstract: In a recent work [Liew and Savona, Phys. Rev. Lett. 104, 183601 (2010)] it was numerically shown that a resonantly driven photonic \”molecule\” consisting of two coupled cavities can exhibit strong photon antibunching with a surprisingly weak Kerr nonlinearity. Here, we analytically identify the subtle quantum interference effect that is responsible for the predicted efficient photon blockade effect. We then extend the theory to the experimentally relevant Jaynes-Cummings system consisting of a single quantum emitter in a coupled-cavity structure and predict the strong antibunching even for single-atom cooperativity on the order of or smaller than unity. The potential of this quantum interference effect in the realization of strongly correlated photonic systems with only weak material nonlinearities is assessed by comparing on-site and inter-site correlations in a ring of three coupled photonic molecules.

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 83 (2)      Da Pagina: 021802  A: 021802

Maggiori informazioni: C.C. acknowledges support from ANR (projects QPOL and SENOQI) and from the Institut Universitaire de France (IUF).
DOI: 10.1103/PhysRevA.83.021802

Citazioni: 305
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-06-16
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