Block synchronization for quantum information

Yuichiro Fujiwara
Phys. Rev. A 87, 022344 – Published 27 February 2013

Abstract

Locating the boundaries of consecutive blocks of quantum information is a fundamental building block for advanced quantum computation and quantum communication systems. We develop a coding theoretic method for properly locating boundaries of quantum information without relying on external synchronization when block synchronization is lost. The method also protects qubits from decoherence in a manner similar to conventional quantum error-correcting codes, seamlessly achieving synchronization recovery and error correction. A family of quantum codes that are simultaneously synchronizable and error-correcting is given through this approach.

  • Received 1 June 2012

DOI:https://doi.org/10.1103/PhysRevA.87.022344

©2013 American Physical Society

Authors & Affiliations

Yuichiro Fujiwara*

  • Division of Physics, Mathematics and Astronomy, California Institute of Technology, MC 253-37, Pasadena, California 91125, USA

  • *yuichiro.fujiwara@caltech.edu

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Vol. 87, Iss. 2 — February 2013

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