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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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Asymptotic teleportation scheme as a universal programmable quantum processor.

Satoshi Ishizaka1, Tohya Hiroshima

  • 1Nano Electronics Research Laboratories, NEC Corporation, 34 Miyukigaoka, Tsukuba 305-8501, Japan.

Physical Review Letters
|December 31, 2008
PubMed
Summary

This study introduces a novel quantum teleportation protocol using multiple receiver ports. It achieves perfect teleportation fidelity in the large N limit, enabling universal quantum computation.

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Area of Science:

  • Quantum Information Science
  • Quantum Computing
  • Quantum Communication

Background:

  • Quantum teleportation enables the transfer of quantum states.
  • Existing protocols typically require complex state reconstruction at the receiver.
  • The need for efficient and robust quantum information transfer is critical.

Purpose of the Study:

  • To propose and demonstrate a new quantum teleportation scheme.
  • To investigate the use of multiple receiver ports for simplified state acquisition.
  • To explore the potential of this scheme as a universal programmable quantum processor.

Main Methods:

  • Utilizing N pairs of maximally entangled qubits.
  • Implementing a sender's square-root measurement.
  • Analyzing teleportation fidelity as a function of N.

Main Results:

  • A protocol for quantum teleportation with N receiver ports is explicitly shown.
  • Perfect teleportation fidelity is asymptotically achieved for large N.
  • The scheme demonstrates potential for universal quantum computation.

Conclusions:

  • The proposed multi-port quantum teleportation scheme simplifies receiver-side operations.
  • Asymptotic perfect fidelity for large N opens avenues for practical quantum information processing.
  • This approach offers a pathway towards universal programmable quantum processors.