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Updated: Jun 12, 2026

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

Surface code quantum communication.

Austin G Fowler1, David S Wang, Charles D Hill

  • 1Centre for Quantum Computer Technology, School of Physics, University of Melbourne, Parkville, Victoria 3010, Australia.

Physical Review Letters
|May 21, 2010
PubMed
Summary
This summary is machine-generated.

This study introduces a novel quantum communication protocol that avoids two-way classical communication, enabling faster information transfer over long distances. The new method uses surface codes and Bell pairs for efficient, low-error quantum repeaters.

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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Last Updated: Jun 12, 2026

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06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Area of Science:

  • Quantum Information Science
  • Quantum Communication Networks
  • Error Correction Codes

Background:

  • Traditional quantum communication relies on linear repeater chains with unreliable links, necessitating slow two-way classical communication.
  • Existing protocols suffer from low communication rates due to the overhead of classical communication and error correction.

Purpose of the Study:

  • To develop a quantum communication protocol that eliminates the need for two-way classical communication.
  • To achieve high-speed, long-distance quantum information transfer with arbitrarily low error rates.

Main Methods:

  • Implementation of a surface code across a chain of quantum repeater stations.
  • Generation of entangled Bell pairs between neighboring stations with high success probability and fidelity.
  • Utilizing unreliable Bell pairs to measure nonlocal stabilizers.
  • Incorporating heralded failure information into post-transmission error correction.

Main Results:

  • Demonstrated avoidance of two-way classical communication in quantum repeaters.
  • Achieved quantum information transfer over arbitrary distances with arbitrarily low error.
  • Established a communication rate limited only by local gate speeds.
  • Showed protocol applicability even with low heralded success probabilities.

Conclusions:

  • The proposed surface code-based quantum repeater scheme significantly enhances communication rates and reliability.
  • This approach overcomes the limitations of existing protocols by enabling one-way communication.
  • The method offers a scalable solution for building robust, long-distance quantum networks.