Breakthrough in Near-Zero Index Photonics Paves Way for Quantum Communication Revolution
September 8, 2025
Recent research highlights how near-zero index photonics bridges classical electrodynamics and quantum physics, enabling the transfer of quantum information and paving the way for faster, more secure quantum communication and computing.
This technology allows a transition from classical to quantum regimes, supporting the development of more efficient and secure quantum networks.
The proposed systems could enable the creation of multipartite entanglement involving many qubits, essential for advanced quantum computing architectures like cluster states and distributed quantum networks.
This marks the first achievement of long-range entanglement using a compact, easily implementable photonic chip system.
The challenge now is to translate these theoretical models into practical, miniaturized experimental systems, with potential for pocket-sized quantum computers.
Future efforts focus on experimental validation and miniaturization of these systems to microscopic scales, possibly as small as consumer electronics.
Potential applications include advanced lasers, sensitive sensors, and quantum-secure communication systems, with the ability to create multi-qubit entanglement for universal quantum computing.
A team has theoretically designed a nitrogen vacancy diamond-based photonic chip capable of extending quantum entanglement up to 17 times farther than in a vacuum, a significant step toward practical quantum devices.
Researchers from multiple institutions have explored superradiance in near-zero refractive index materials, demonstrating potential for long-range quantum superradiance and scalable quantum technologies.
Near-zero refractive index materials enable light to behave uniformly, allowing atoms that are far apart to interact as if they were close, thus facilitating long-range quantum entanglement.
Superradiance, first theorized in 1954, involves atoms emitting light collectively and more intensely, and is now being harnessed in near-zero index media to enable long-distance quantum interactions.
Professor Eric Mazur emphasized that near-zero index photonics facilitates quantum information transfer, which is crucial for the second quantum revolution.
Summary based on 3 sources
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Sources

Mirage News • Sep 5, 2025
Light Manipulation to Transform Quantum Computing
The Quantum Insider • Sep 7, 2025
Superradiance Discovery Extends Quantum Entanglement Range 17-Fold