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Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
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Quantum communication beyond the localization length in disordered spin chains.

Jonathan Allcock1, Noah Linden

  • 1Department of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, United Kingdom. jon.allcock@bristol.ac.uk

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Summary
This summary is machine-generated.

We demonstrate using quantum error correction and parallel spin chains to achieve high-fidelity quantum state transfer over long distances, overcoming localization effects in quantum systems.

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Area of Science:

  • Quantum Information Science
  • Condensed Matter Physics

Background:

  • Quantum state transfer is crucial for quantum computing and communication.
  • Localization phenomena in spin chains can limit the distance and fidelity of state transfer.

Purpose of the Study:

  • To investigate the impact of localization on quantum state transfer in spin chains.
  • To develop a method for high-fidelity quantum state transfer over arbitrary distances, overcoming localization length limitations.

Main Methods:

  • Utilizing quantum error correction codes.
  • Employing multiple, parallel spin chain architectures.
  • Analyzing the fidelity of qubit transfer as a function of distance and localization.

Main Results:

  • Demonstrated high-fidelity quantum state transfer beyond the localization length.
  • Showcased the effectiveness of quantum error correction in mitigating decoherence.
  • Validated the scalability of the parallel spin chain approach.

Conclusions:

  • Quantum error correction and parallel chains are effective strategies for long-distance quantum state transfer.
  • The proposed method overcomes intrinsic limitations imposed by localization in spin chains.
  • This work paves the way for robust quantum communication networks and distributed quantum computing.