Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optica

Compressive characterization of telecom photon pairs in the spatial and spectral degrees of freedom

Nicola Montaut, Omar S. Magaña‐Loaiza, Tim J. Bartley, Varun Verma, Sae Woo Nam, Richard P. Mirin, Christine Silberhorn, Thomas Gerrits

Published Nov 6, 2018• 14 citations
Publisher

Abstract

dimensions using only 20% of the measurements with respect to the conventional raster scan technique. Our characterization technique opens the possibility of increasing and exploiting the complexity and dimensionality of quantum protocols that utilize multiple degrees of freedom of light with high efficiency.
DOI
10.1364/optica.5.001418

Related papers

Rapid High-Dimensional Entanglement Characterization from Compressive Measurements

Gregory A. Howland, John C. Howell

We experimentally demonstrate rapid characterization of a high-dimensional entangled channel using compressive sensing. Unlike basis scan, this technique effectively scales to large dimensions and efficiently handles very low flux signals.

Frontiers in Optics•Jan 1, 2012•0 citations

Measuring the Temporal-Spectral State of Two Photons

Alex O. C. Davis, Valérian Thiel, Brian J. Smith

Complete characterization of two-photon temporal-spectral states by joint spectral-sheering interferometry and frequency resolved measurement is presented. This technique opens the path to harnessing the time-frequency degree of freedom of light for quantum applications.

The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting•Jan 1, 2019•0 citations

Multiphoton quantum technologies: multiphoton state manipulation and characterization

Omar S. Magaña‐Loaiza

The control of photons represents a pillar for our modern technological society. The emerging field of quantum photonics exploits quantum properties of light to dramatically improve the performance of protocols for metrology, communication and information processing. However, modern applications exploit very little of the enormous potential of the photon. Unfortunately, the challenges involved in the preparation and characterization of photonic states with multiple particles, impose practical limitations to realistic quantum technologies. In this talk, I will report on our recent results on the preparation, manipulation and characterization of quantum states with multiple photons. I will describe how the manipulation of the quantum electromagnetic fluctuations of a pair of vacuum states leads to a novel family of quantum-correlated multiphoton states with tunable mean photon numbers and degrees of correlations. Our technique relies on the use of conditional measurements to engineer the vacuum and consequently the excitation mode of the field through the simultaneous subtraction of photons from two-mode squeezed vacuum states. In addition, I will describe the potential of combing these states with photon number resolving measurements for quantum phase estimation. The last part of my talk will be devoted to discuss our recent technique that allowed us to utilize compressive sensing to demonstrate measurement of high-dimensional states, that describe telecom photon pairs in the spatial and spectral degrees of freedom, with 12 billions of elements using only a small fraction of measurements.

Optical and Quantum Sensing and Precision Metrology II•Mar 1, 2019•0 citations

Experimental extraction of an entangled photon pair using two photon pairs at telecom and visible wavelengths

Yukihiro Sugiura

The Japan Society of Applied Physics•Jul 8, 2014•0 citations

Efficient compressive and Bayesian characterization of biphoton frequency spectra

Emma M. Simmerman, H.-H. Lu, Andrew M. Weiner +1 more

Frequency-bin qudits constitute a promising tool for quantum information processing, but their high dimensionality can make for tedious characterization measurements. Here we introduce and compare compressive sensing and Bayesian mean estimation for recovering the spectral correlations of entangled photon pairs. Using a conventional compressive sensing algorithm, we reconstruct joint spectra with up to a 26-fold reduction in measurement time compared to the equivalent raster scan. Applying a custom Bayesian model to the same data, we then additionally realize reliable and consistent quantification of uncertainty. These efficient methods of biphoton characterization should advance our ability to use the high degree of parallelism and complexity afforded by frequency-bin encoding.

arXiv:2003.04391•Optics Letters•Apr 21, 2020•12 citations

Resource-efficient characterization of indistinguishability of arbitrary single photons for scalable quantum networks

Nijil Lal Cheriya Koyyottummal, Ivan A. Burenkov, Cory M. Nunn +4 more

Optical and Quantum Sensing and Precision Metrology II•Mar 5, 2026•0 citations
The control of photons represents a pillar for our modern technological society. The emerging field of quantum photonics exploits quantum properties of light to dramatically improve the performance of protocols for metrology, communication and information processing. However, modern applications exploit very little of the enormous potential of the photon. Unfortunately, the challenges involved in the preparation and characterization of photonic states with multiple particles, impose practical limitations to realistic quantum technologies. In this talk, I will report on our recent results on the preparation, manipulation and characterization of quantum states with multiple photons. I will describe how the manipulation of the quantum electromagnetic fluctuations of a pair of vacuum states leads to a novel family of quantum-correlated multiphoton states with tunable mean photon numbers and degrees of correlations. Our technique relies on the use of conditional measurements to engineer the vacuum and consequently the excitation mode of the field through the simultaneous subtraction of photons from two-mode squeezed vacuum states. In addition, I will describe the potential of combing these states with photon number resolving measurements for quantum phase estimation. The last part of my talk will be devoted to discuss our recent technique that allowed us to utilize compressive sensing to demonstrate measurement of high-dimensional states, that describe telecom photon pairs in the spatial and spectral degrees of freedom, with 12 billions of elements using only a small fraction of measurements.
Frequency-bin qudits constitute a promising tool for quantum information processing, but their high dimensionality can make for tedious characterization measurements. Here we introduce and compare compressive sensing and Bayesian mean estimation for recovering the spectral correlations of entangled photon pairs. Using a conventional compressive sensing algorithm, we reconstruct joint spectra with up to a 26-fold reduction in measurement time compared to the equivalent raster scan. Applying a custom Bayesian model to the same data, we then additionally realize reliable and consistent quantification of uncertainty. These efficient methods of biphoton characterization should advance our ability to use the high degree of parallelism and complexity afforded by frequency-bin encoding.