High-dimensional entanglement and topological protection in nonlinear waveguide arrays
We demonstrate a nonlinear AlGaAs photonic chip generating biphotons with high-dimensional spatial correlations. Photon pairs are generated by parametric down conversion in a waveguide array and simultaneously spread through quantum walks along the various waveguides, allowing to generate various types of high-dimensional entangled states of light. We further implement the Su-Schriefer-Heeger model and demonstrate the topological protection of the SPDC process against disorder. These results highlight nonlinear waveguide arrays as a promising platform for exploring the interplay between nonlinearity, disorder and topology in quantum photonic circuits.
Authors
- Arnault Raymond
- Fabrice Raineri
- Maria I. Amanti (ORCID: https://orcid.org/0000-0001-5687-475X)
- S. Ducci (ORCID: https://orcid.org/0000-0002-9005-1949)
- Martina Morassi (ORCID: https://orcid.org/0000-0001-6472-2916)
- A. Lemaı̂tre (ORCID: https://orcid.org/0000-0003-1892-9726)
- Jean‐René Coudevylle (ORCID: https://orcid.org/0009-0004-7299-1592)
- F. Baboux (ORCID: https://orcid.org/0000-0002-3750-3731)
- Alessandro Zecchetto (ORCID: https://orcid.org/0009-0005-3469-8261)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université Paris Cité (FR)
- Université Paris-Saclay (FR)
- Sorbonne Paris Cité (FR)
- Institut de Physique de Nice (FR)
Publication Details
- Journal
- EPJ Web of Conferences
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1051/epjconf/202533506005
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00