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Evaluating the performance of photon-number-resolving detectors
KTH, School of Engineering Sciences (SCI), Applied Physics.
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.ORCID iD: 0000-0002-2082-9583
2019 (English)In: Physical Review A: covering atomic, molecular, and optical physics and quantum information, ISSN 2469-9926, E-ISSN 2469-9934, Vol. 99, no 4, article id 043822Article in journal (Refereed) Published
Description
Abstract [en]

We analyze the performance of photon-number-resolving (PNR) detectors and introduce a figure of merit for the accuracy of such detectors. This figure of merit is the (worst-case) probability that the photon-numberresolving detector correctly predicts the input photon number. Simulations of various PNR detectors based on multiplexed single-photon "click detectors" is performed. We conclude that the required quantum efficiency is very high in order to achieve even moderate (up to a handful) photon resolution, we derive the required quantum efficiency as a function of the the maximal photon number one wants to resolve, and we show that the number of click detectors required grows quadratically with the maximal number of photons resolvable.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2019. Vol. 99, no 4, article id 043822
National Category
Accelerator Physics and Instrumentation Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-251484DOI: 10.1103/PhysRevA.99.043822ISI: 000464712000011Scopus ID: 2-s2.0-85064842634OAI: oai:DiVA.org:kth-251484DiVA, id: diva2:1317306
Note

QC 20190522

Available from: 2019-05-22 Created: 2019-05-22 Last updated: 2020-02-05Bibliographically approved

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Björk, Gunnar

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Physical Review A: covering atomic, molecular, and optical physics and quantum information
Accelerator Physics and InstrumentationAtom and Molecular Physics and Optics

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