Classical-decisive quantum internet by integrated photonics

Area of Science:

• Quantum networking
• Photonic technologies
• Classical-quantum integration

Background:

• Classical and quantum technologies are typically seen as separate, deterministic vs. probabilistic.
• This dichotomy impedes the creation of a scalable quantum internet.
• The global internet's expansion necessitates new networking paradigms.

Purpose of the Study:

• To present a classical-decisive quantum internet architecture.
• To enable efficient entanglement distribution over existing fiber networks.
• To demonstrate a practical pathway toward a scalable quantum internet.

Main Methods:

• Integration of quantum information with advanced photonic technologies.
• On-chip precise synchronization of classical headers and quantum payloads.
• Real-time error mitigation using classical signal readout.

Main Results:

• Efficient entanglement distribution over a commercially deployed fiber network.
• Dynamic routing and networking of high-fidelity entanglement guided by classical light.
• Preservation of quantum states without disturbing quantum information.

Conclusions:

• The developed architecture demonstrates a practical approach to building a scalable quantum internet.
• Utilizes existing network infrastructure and operating systems.
• Overcomes the traditional orthogonal view of classical and quantum technologies.