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Classical-decisive quantum internet by integrated photonics.

Yichi Zhang1, Robert Broberg2, Alan Zhu3

  • 1Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, USA.

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Summary
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A novel classical-decisive quantum internet architecture integrates quantum information with advanced photonics for efficient entanglement distribution. This approach leverages existing fiber networks, paving the way for a scalable quantum internet.

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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.