Santana, T S; Munoz, C D; Starkwood, R A; Chunnilall, C J (2024) Extending the quantum tomography of a quasi-photon-number-resolving detector. Optics Express, 32 (11). pp. 20350-20359.

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Abstract

The ability to discriminate the number of photons in a radiation field has a critical role in the implementation of quantum optical technologies. True photon-number-resolving detectors are rare and complex devices, while a quasi-photon-number-resolving detector (qPNRD) is a practical alternative for real-world applications. Our qPNRD is composed of a fibre demultiplexer and individual non-photon-number-resolving detectors. We perform quantum tomography on our qPNRD based on the positive operator-valued measure and extend the analysis using the Bayesian formalism to uncover how the measurement influences knowledge of the measured photon probability distribution.

Item Type:	Article
Subjects:	Optical Radiation and Photonics > Few Photon Science
Divisions:	Quantum Technologies
Identification number/DOI:	10.1364/OE.517309
Last Modified:	23 Sep 2024 10:23
URI:	https://eprintspublications.npl.co.uk/id/eprint/10049