Work

Developing a photon-number-resolving detection chain for quantum communication protocols involving mesoscopic states of light

Year: 2026

Type: article

Abstract: We present the characterization of a photon-number-resolving detection chain based on Silicon photomultipliers (SiPM) coupled to a 14 bit, 1 GS/s digital acquisition system embedding an FPGA-based signal processing pipeline that performs real-time baseline subtraction, digital deconvolution, and charge integration. Three SiPM models manufactured by Hamamatsu are tested and compared in the mesoscopic intensity regime using both classical coherent states and quantum twin-beam states, enabling a systematic investigation of the effects of pixel pitch, pile-up, and photon detection efficiency on the detector performance.

Source: EPJ Quantum Technology

DOI: 10.1140/epjqt/s40507-026-00586-9

Authors: Alex Pozzoli, Stefano Carsi, Andrea Abba, Alessia Allevi

Institution: University of Insubria

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,190

Funders: Università degli Studi dell'Insubria, Ministero dell'Università e della Ricerca