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High-dimensional topological photonic entanglement
M Javad Zakeri1, Armando Perez-Leija2, Andrea Blanco-Redondo1
1CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA.
Science (New York, N.Y.)
|March 26, 2026
Summary
Researchers created high-dimensional topological photonic entanglement using silicon photonic waveguide superlattices. This breakthrough offers a scalable path toward fault-tolerant quantum photonic states resilient to imperfections.
Area of Science:
- Quantum photonics
- Topological quantum computation
- Nanophotonics
Background:
- High-dimensional quantum states are crucial for quantum computation.
- Topology offers resilient encoding and transport of quantum information.
- Scaling entangled topological photonic modes remains a challenge.
Purpose of the Study:
- To demonstrate a method for generating high-dimensional topological photonic entanglement.
- To address the need for scalable topological photonic states.
Main Methods:
- Utilized designed silicon photonic waveguide topological superlattices.
- Employed nonlinear generation of energy-time-entangled photon pairs.
- Generated entanglement on a superposition of multiple topological modes.
Main Results:
- Demonstrated high-dimensional topological photonic entanglement.
- Achieved entanglement of up to five topological modes.
- Showcased resilience to nanofabrication imperfections.
Conclusions:
- The developed method provides a route toward scalable, fault-tolerant quantum photonic states.
- Topological photonic superlattices are a promising platform for quantum information processing.
