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

Conference on Lasers and Electro-Optics

Entanglement-assisted calibration of a photon-number-resolving detector

Fabrizio Piacentini, G. Brida, Luigi Ciavarella, Mario Dagrada, Ivo Pietro Degiovanni, Marco Genovese, Alan L. Migdall, M. G. Mingolla, Matteo G. A. Paris, Sergey V. Polyakov

Published Jan 1, 2012• 0 citations
Publisher

Abstract

Here we present the first experimental entanglement-assisted quantum char-acterization of an unknown photon-number-resolving detector, i.e. the reconstruction of its positive operator-valued measure (POVM), obtained by exploiting the quantum correlations of a twin-beam generated by parametric down conversion (PDC).
DOI
10.1364/qels.2012.qtu1e.4

Related papers

Ancilla-Assisted Calibration of a Measuring Apparatus

G. Brida, Luigi Ciavarella, Ivo Pietro Degiovanni +6 more

A quantum measurement can be described by a set of matrices, one for each possible outcome, which represents the positive operator-valued measure (POVM) of the sensor. Efficient protocols of POVM extraction for arbitrary sensors are required. We present the first experimental POVM reconstruction that takes explicit advantage of a quantum resource, i.e., nonclassical correlations with an ancillary state. A POVM of a photon-number-resolving detector is reconstructed by using strong quantum correlations of twin beams generated by parametric down-conversion. Our reconstruction method is more statistically robust than POVM reconstruction methods that use classical input states.

arXiv:1205.0798•Physical Review Letters•Jun 19, 2012•50 citations

Quantum Characterization of Single Photon Detectors

M. G. Mingolla

The research activities described in this thesis have basically an experimental profile, and were realized in the Quantum Optics Laboratories of the Optic Division in the Istituto Nazionale di Ricerca Metrologica (I.N.Ri.M.). The experiments presented here are oriented to the characterization of single- and few-photon detectors calibration, exploiting quantum properties. The first chapter has an introductory character, oriented to the study of nonlinear optics phenomena and focused in the spontaneous parametric down conversion (PDC) process. After the quantization of the free electromagnetic field, we recall the quantum theory of PDC. In the second chapter the Klyshko's two-photon calibration technique is presented and applied to an Avalanche Photo Diode (APD) based single photon counting module. Chapter three is an introduction to quantum measurements and quantum operation theories where the concept of positive-operator valued measurement (POVM) is presented. In chapter four, the quantum characterization of a true photon-number resolving detector (PNRD) based on a transition edge sensor (TES) is presented. In this experiment, the POVM of the TES is reconstructed by realizing a tomography of the detection process's quantum operation, using as a probe a set of known coherent states. In the fifth and last chapter, the POVM of a tree type PNRD is reconstructed exploiting strong quantum correlations of PDC twin beams

•Jan 1, 2014•0 citations

Full mode reconstruction of optical twin beams via photon-number-resolved measurement

Elizabeth A. Goldschmidt, Ivan A. Burenkov, Ankita K. Sharma +5 more

We present a method to reconstruct the mode structure of multimode conjugated optical fields using an experimentally measured joint photon-number probability distribution and demonstrate a reconstruction of a bright parametric down-conversion source.

Frontiers in Optics•Jan 1, 2017•0 citations

Absolute calibration of photon-number-resolving detectors with an analog output using twin beams

Jan Peřina, Ondřej Haderka, Alessia Allevi +1 more

A method for absolute calibration of a photon-number resolving detector producing analog signals as the output is developed using a twin beam. The method gives both analog-to-digital conversion parameters and quantum detection efficiency for the photon fields. Characteristics of the used twin beam are also obtained. A simplified variant of the method applicable to fields with high signal to noise ratios and suitable for more intense twin beams is suggested.

arXiv:1401.6071•Applied Physics Letters•Jan 27, 2014•28 citations

Complete Characterization of Weak-Homodyne Photon-Number-Resolving Detectors: Applications to Non-Classical Photonic State Reconstructions

Hendrik B. Coldenstrodt-Ronge, Graciana Puentes, Offir Cohen +8 more

A novel detector combining phase sensitivity and photon-number resolution is experimentally characterized by measuring its positive-operator-value measurement set. Direct application to tomographic reconstruction of heralded single-photon states is presented.

Conference on Lasers and Electro-Optics•Jan 1, 2010•0 citations

Reconstruction of Joint Photon-Number Distributions of Twin Beams Incorporating Spatial Noise Reduction

Jan Peřina, Václav Michálek, Ondřej Haderka

Photons in twin beams exhibit correlations in both photon number and spatial detection position. Here spatial correlations in detection positions are exploited to develop a method for reconstructing the joint photon-number distribution of a twin beam from the experimental photocount histograms. This considerably reduces experimental noise, making it superior to the usual methods. This practical reconstruction method for spatially resolved photon counting is suitable for any application that requires joint photon-number distributions of twin beams, in $e.g.$ metrology, or future quantum communication protocols.

arXiv:1812.03470•Physical Review Applied•Dec 21, 2018•3 citations
A quantum measurement can be described by a set of matrices, one for each possible outcome, which represents the positive operator-valued measure (POVM) of the sensor. Efficient protocols of POVM extraction for arbitrary sensors are required. We present the first experimental POVM reconstruction that takes explicit advantage of a quantum resource, i.e., nonclassical correlations with an ancillary state. A POVM of a photon-number-resolving detector is reconstructed by using strong quantum correlations of twin beams generated by parametric down-conversion. Our reconstruction method is more statistically robust than POVM reconstruction methods that use classical input states.
The research activities described in this thesis have basically an experimental profile, and were realized in the Quantum Optics Laboratories of the Optic Division in the Istituto Nazionale di Ricerca Metrologica (I.N.Ri.M.). The experiments presented here are oriented to the characterization of single- and few-photon detectors calibration, exploiting quantum properties. The first chapter has an introductory character, oriented to the study of nonlinear optics phenomena and focused in the spontaneous parametric down conversion (PDC) process. After the quantization of the free electromagnetic field, we recall the quantum theory of PDC. In the second chapter the Klyshko's two-photon calibration technique is presented and applied to an Avalanche Photo Diode (APD) based single photon counting module. Chapter three is an introduction to quantum measurements and quantum operation theories where the concept of positive-operator valued measurement (POVM) is presented. In chapter four, the quantum characterization of a true photon-number resolving detector (PNRD) based on a transition edge sensor (TES) is presented. In this experiment, the POVM of the TES is reconstructed by realizing a tomography of the detection process's quantum operation, using as a probe a set of known coherent states. In the fifth and last chapter, the POVM of a tree type PNRD is reconstructed exploiting strong quantum correlations of PDC twin beams
Photons in twin beams exhibit correlations in both photon number and spatial detection position. Here spatial correlations in detection positions are exploited to develop a method for reconstructing the joint photon-number distribution of a twin beam from the experimental photocount histograms. This considerably reduces experimental noise, making it superior to the usual methods. This practical reconstruction method for spatially resolved photon counting is suitable for any application that requires joint photon-number distributions of twin beams, in e.g.e.g.e.g. metrology, or future quantum communication protocols.