Nature Communications (Jan 2023)

Programmable frequency-bin quantum states in a nano-engineered silicon device

  • Marco Clementi,
  • Federico Andrea Sabattoli,
  • Massimo Borghi,
  • Linda Gianini,
  • Noemi Tagliavacche,
  • Houssein El Dirani,
  • Laurene Youssef,
  • Nicola Bergamasco,
  • Camille Petit-Etienne,
  • Erwine Pargon,
  • J. E. Sipe,
  • Marco Liscidini,
  • Corrado Sciancalepore,
  • Matteo Galli,
  • Daniele Bajoni

DOI
https://doi.org/10.1038/s41467-022-35773-6
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 10

Abstract

Read online

Frequency-bin qubits get the best of time-bin and dual-rail encodings, but require external modulators and pulse shapers to build arbitrary states. Here, instead, the authors work directly on-chip by controlling the interference of biphoton amplitudes generated in multiple, coherently-pumped ring resonators.