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Published April 2008 | Published
Journal Article Open

Light-shift-induced photonic nonlinearities

Abstract

We propose a new method to produce self- and cross-Kerr photonic nonlinearities, using light-induced Stark shifts due to the interaction of a cavity mode with atoms. The proposed experimental set-up is simpler than in previous approaches, while the strength of the nonlinearity obtained with a single atom is the same as in the setting based on electromagnetically induced transparency. Furthermore our scheme can be applied to engineer effective photonic nonlinear interactions whose strength increases with the number of atoms coupled to the cavity mode, leading to photon–photon interactions several orders of magnitude larger than previously considered possible.

Additional Information

© 2008 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Articles submitted prior to November 2012 the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA version 3.0) licence. Received 4 October 2007. Published 10 April 2008. This work is part of the QIP-IRC supported by EPSRC (GR/1582176/01), the EU integrated project QAP supported by the IST directorate under contract no. 015848 and was supported by EPSRC (EP/E058256/1), the Brazilian agency CNPq, a Royal Society Wolfson Research Merit Award, and the Alexander von Humboldt Foundation.

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August 19, 2023
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