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Article Dans Une Revue Optica Année : 2024

Large reconfigurable quantum circuits with SPAD arrays and multimode fibers

Adrian Makowski
  • Fonction : Auteur
Michał Dąbrowski
  • Fonction : Auteur
Ivan Michel Antolovic
  • Fonction : Auteur
Ivan Michel Antolovic
  • Fonction : Auteur
Claudio Bruschini
  • Fonction : Auteur
Edoardo Charbon
  • Fonction : Auteur
Radek Lapkiewicz
  • Fonction : Auteur

Résumé

Reprogrammable integrated optics provides a natural platform for tunable quantum photonic circuits, but faces challenges when high dimensions and high connectivity are involved. Here, we implement high-dimensional linear transformations on spatial modes of photons using wavefront shaping together with mode mixing in a multimode fiber, and measure photon correlations using a time-tagging single-photon avalanche diode (SPAD) array. Our demonstration of a generalization of a Hong-Ou-Mandel interference to 22 output ports shows the scalability potential of wavefront shaping in complex media in conjunction with SPAD arrays for implementing high-dimensional reconfigurable quantum circuits. Specifically, we achieved (80.5±6.8)% similarity for indistinguishable photon pairs and (84.9±7.0)% similarity for distinguishable photon pairs using 22 detectors and random circuits.

Dates et versions

hal-04556210 , version 1 (23-04-2024)

Identifiants

Citer

Adrian Makowski, Adrian Makowski, Michał Dąbrowski, Michał Dąbrowski, Ivan Michel Antolovic, et al.. Large reconfigurable quantum circuits with SPAD arrays and multimode fibers. Optica, 2024, 11 (3), pp.340-343. ⟨10.1364/OPTICA.506943⟩. ⟨hal-04556210⟩
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