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Generation and Coherent Control of Pulsed Quantum Frequency Combs

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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.

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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.