Scientific Results

Feshbach blockade: Single-photon nonlinear optics using resonantly enhanced cavity polariton scattering from biexciton states

Year: 2010

Authors: Carusotto I., Volz T., Imamoğlu A.

Autors Affiliation: INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento Р38123 Povo, Italy, EU;
Institute for Quantum Electronics, ETH Zurich – Wolfgang-Pauli-Strasse 16, 8093 Zϋrich, Switzerland

Abstract: We theoretically demonstrate how the resonant coupling between a pair of cavity polaritons and a biexciton state can lead to a large single-photon Kerr nonlinearity in a semiconductor solid-state system. A fully analytical model of the scattering process between a pair of cavity polaritons is developed, which explicitly includes the biexcitonic intermediate state. A dramatic enhancement of the polariton-polariton interactions is predicted in the vicinity of the biexciton Feshbach resonance. Application to the generation of non-classical light from polariton dots is discussed.

Journal/Review: EPL

Volume: 90 (3)      Pages from: 37001  to: 37001

KeyWords: Polaritons; Cavity quantum electrodynamics; micromasers; Scattering theory;
DOI: 10.1209/0295-5075/90/37001

Citations: 26
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