Mode structure reconstruction with detected and undetected high-order photon correlations

Sergey V. Polyakov; Laura T. Knoll; Giulia Petrini; Fabrizio Piacentini; Paolo Traina; Ekaterina Moreva; Ivo P. Degiovanni; Marco Genovese

doi:10.1117/12.2649012

9 March 2023 Mode structure reconstruction with detected and undetected high-order photon correlations

Sergey V. Polyakov, Laura T. Knoll, Giulia Petrini, Fabrizio Piacentini, Paolo Traina, Ekaterina Moreva, Ivo P. Degiovanni, Marco Genovese

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Proceedings Volume PC12446, Quantum Computing, Communication, and Simulation III; PC1244605 (2023) https://doi.org/10.1117/12.2649012
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

We report on a robust method for reconstructing multi-mode optical fields. In particular, our method correctly identifies the number and types of modes as well as each mode’s energy, which we demonstrated experimentally. Our method uses multidetector trees and both high-order autocorrelation functions of detected photons (the Glauber function) and high-order autocorrelation functions of no-photon detection. Here we show successful reconstruction for classical and nonclassical multimode fields that contain up to 4 modes whose types are not disclosed to the reconstruction algorithm. This method is significantly more successful than the previously reported one, based on high-order Glauber functions only.

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Sergey V. Polyakov, Laura T. Knoll, Giulia Petrini, Fabrizio Piacentini, Paolo Traina, Ekaterina Moreva, Ivo P. Degiovanni, and Marco Genovese "Mode structure reconstruction with detected and undetected high-order photon correlations", Proc. SPIE PC12446, Quantum Computing, Communication, and Simulation III, PC1244605 (9 March 2023); https://doi.org/10.1117/12.2649012

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