Compressed sensing of twisted photons

Bouchard, F.; Koutny, D.; Hufnagel, F.; Hradil, Z.; Rehacek, J.; Teo, Y. S.; Ahn, D.; Jeong, H.; Sanchez-Soto, Luis; Leuchs, Gerd; Karimi, E.

doi:10.1364/OE.27.017426

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Compressed sensing of twisted photons

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Sanchez-Soto, Luis
Quantumness, Tomography, Entanglement, and Codes, Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Leuchs, Gerd
Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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arXiv:1812.04127.pdf
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Citation

Bouchard, F., Koutny, D., Hufnagel, F., Hradil, Z., Rehacek, J., Teo, Y. S., et al. (2019). Compressed sensing of twisted photons. Optics Express, 27(13), 17426-17323. doi:10.1364/OE.27.017426.

Cite as: https://hdl.handle.net/21.11116/0000-0006-C111-C

Abstract

The ability to completely characterize the state of a quantum 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 requires only a few intensity measurements, our technique
would provide an easy and accurate way to identify quantum sources, channels, and systems.