Tomography of Detectors Taking Dead Time into Account

Yu. I. Bogdanov; Богданов Ю. И.; K. G. Katamadze; Катамадзе К. Г.; N. A. Borshchevskaya; Борщевская Н. А.; G. V. Avosopiants; Авосопянц Г. В.; N. A. Bogdanova; Богданова Н. А.; S. P. Kulik; Кулик С. П.; V. F. Lukichev; Лукичев В. Ф.

doi:10.31857/S0544126923700369

Tomography of Detectors Taking Dead Time into Account

Authors: Bogdanov Y.I.¹, Katamadze K.G.¹, Borshchevskaya N.A.¹^,2, Avosopiants G.V.¹^,2, Bogdanova N.A.¹, Kulik S.P.², Lukichev V.F.¹
Affiliations:
1. Valiev Institute of Physics and Technology Institute, Russian Academy of Sciences
2. Quantum Technology Center, Moscow State University
Issue: Vol 52, No 4 (2023)
Pages: 249-255
Section: КВАНТОВЫЕ ТЕХНОЛОГИИ
URL: https://journals.rcsi.science/0544-1269/article/view/138551
DOI: https://doi.org/10.31857/S0544126923700369
EDN: https://elibrary.ru/FEIKNA
ID: 138551

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Abstract
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References
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Abstract

Using numerical simulation methods that take into account the dead time effect, algorithms are developed to calculate the detector’s response for photon fluxes with different photon number distributions, including the Poisson, Fock, and thermal distributions. Based on the results obtained, a detector tomography method is developed, as well as an algorithm for identifying the corresponding elements of a positive opera-tor-valued measure (POVM). Experimental studies using coherent states demonstrate close agreement between the calculation results and experimental data.

Keywords

photon detectors, dead time of the detector, coherent states, Fock states, thermal states

References

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