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Photon number discrimination without a photon counter and reconstructing non-Gaussian states of light

Chrzanowski, Helen; Bernu, Julien; Sparkes, Benjamin; Hage, Boris; Lund, A P; Ralph, Timothy Cameron; Lam, Ping Koy; Symul, Thomas


We demonstrate a new approach to photon number discrimination, relying only on continuous variable homodyne measurements. We apply this technique to the reconstruction of the non-Gaussian one, two and three photon subtracted squeezed vacuum state. This new technique is remarkable as it seemingly contradicts the accepted idea that non-Gaussian quantum states with negative Wigner functions cannot be produced using only the Gaussian resources and techniques exploited here.

CollectionsANU Research Publications
Date published: 2011
Type: Conference paper
Source: 2011 Int. Quantum Electron. Conf., IQEC 2011 and Conf. Lasers and Electro-Optics, CLEO Pacific Rim 2011 Incorporating the Australasian Conf. Optics, Lasers and Spectroscopy and the Australian Conf.


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