Compressed sensing of twisted photons



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Bouchard, Frédéric and Koutný, Dominik and Hufnagel, Felix and Hradil, Zdenek and Rehácek, Jaroslav and Yong-Siah, Teo and Ahn, Daekun and Jeong, Hyunseok and Sánchez Soto, Luis Lorenzo and Leuchs, Gerd and Karimi, Ebrahim (2019) Compressed sensing of twisted photons. Optics express, 27 (13). pp. 17426-17434. ISSN 1094-4087

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The ability to completely characterize the state of a system is an essential element for the emerging quantum technologies. Here, we present a compressed-sensing-inspired method to ascertain any rank-deficient qudit state, which we experimentally encode in photonic orbital angular momentum. We efficiently reconstruct these qudit states from a few scans with an intensified CCD camera. Since it only requires a small number of intensity measurements, our technique provides an easy and accurate way to identify quantum sources, channels, and systems. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

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© 2019 Optical Society of America.
European Union’s Horizon 2020 Research and Innovation Programme (766970); Canada Research Chairs; Ontario’s Early Researcher Award; BK21 Plus Program (21A20131111123); National Research Foundation of Korea (2010-0018295); Korea Institute of Science and Technology Institutional Program (2E27800-18-P043); Ministerio de Economía y Competitividad (FIS2015-67963-P); Grant Agency of the Czech Republic (18-04291S); Internal Grant Agency of the Faculty of Sciences of Palacký University (PrF 2018-003)

Uncontrolled Keywords:Quantum; Phase
Subjects:Sciences > Physics > Optics
ID Code:57157
Deposited On:29 Oct 2019 12:53
Last Modified:29 Oct 2019 13:28

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