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Published February 27, 2013 | Published
Journal Article Open

Block synchronization for quantum information

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.

Additional Information

© 2013 American Physical Society. Received 1 June 2012; revised manuscript received 8 February 2013; published 27 February 2013. Y.F. thanks V. D. Tonchev, D. Clark, M. M. Wilde, and R. M. Wilson for constructive comments and stimulating discussions. He is grateful to the anonymous referees for their careful reading and valuable comments; a significant portion of Sec. IIID is due to their suggestions. This work is supported by JSPS.

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Published - PhysRevA.87.022344.pdf

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August 19, 2023
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October 23, 2023