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Conference Paper

Four-state discrimination scheme beyond the heterodyne limit

MPS-Authors
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Mueller,  Christian R.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Wittmann,  Christoffer
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Marquardt,  Christoph
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Andersen,  Ulrik L.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Leuchs,  Gerd
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Mueller, C. R., Usuga, M. A., Wittmann, C., Takeoka, M., Marquardt, C., Andersen, U. L., et al. (2012). Four-state discrimination scheme beyond the heterodyne limit. In 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO). 345 E 47TH ST, NEW YORK, NY 10017 USA: IEEE.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-692D-A
Abstract
We propose and experimentally demonstrate a hybrid discrimination scheme for the quadrature phase shift keying protocol, which outperforms heterodyne detection for any signal power. The discrimination is composed of a quadrature measurement, feed forward and photon detection. (C) 2011 Optical Society of America