Overcoming vacuum noise: The unforeseen benefits of quantum heterodyne detection

Müller CR, Peuntinger C, Dirmeier T, Khan I, Vogl U, Marquardt C, Leuchs G, Sánchez-Soto LL, Teo YS, Hradil Z, Rehácek J (2016)

Publication Type: Conference contribution

Publication year: 2016

Publisher: OSA - The Optical Society

Conference Proceedings Title: Optics InfoBase Conference Papers

Event location: Rochester, NY, USA

ISBN: 9781943580194

DOI: 10.1364/FIO.2016.FF3D.3

Abstract

Homodyne tomography and heterodyne detection are principal measurement schemes in continuous-variable quantum information and provide different accuracies in determining the quantum state of a system. The former allows for a tomographic reconstruction of the Wigner function of the state, whereas the latter directly samples its Husimi Q-function. We experimentally demonstrate that contrary to a common belief, heterodyne detection outperforms homodyne tomography for almost all Gaussian states.

Authors with CRIS profile

Christoph Marquardt Institut für Optik, Information und Photonik Gerhard Leuchs

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE) Palacky University Olomouc / Univerzita Palackého v Olomouci CZ Czech Republic (CZ)

How to cite

APA:

Müller, C.R., Peuntinger, C., Dirmeier, T., Khan, I., Vogl, U., Marquardt, C.,... Rehácek, J. (2016). Overcoming vacuum noise: The unforeseen benefits of quantum heterodyne detection. In Optics InfoBase Conference Papers. Rochester, NY, USA: OSA - The Optical Society.

MLA:

Müller, C. R., et al. "Overcoming vacuum noise: The unforeseen benefits of quantum heterodyne detection." Proceedings of the Frontiers in Optics, FiO 2016, Rochester, NY, USA OSA - The Optical Society, 2016.

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