Achieving the Holevo bound via sequential measurements
Name
Giovannetti-2012-Achieving the Holevo bound via sequential measurements.pdf
Size
279.98 KB
Format
Adobe PDF
Checksum (MD5)
7ec997dadbad894bbd3caa641b573f13
Author(s)
Giovannetti, Vittorio
Lloyd, Seth
Maccone, Lorenzo
Date Issued
January 2012
Journal
Physical Review A
Publisher
American Physical Society (APS)
Citation
Giovannetti, Vittorio, Seth Lloyd, and Lorenzo Maccone. “Achieving the Holevo Bound via Sequential Measurements.” Physical Review A 85.1 (2012): n. pag. Web. 17 Feb. 2012. © 2012 American Physical Society
Version
Final published version
Abstract
We present a decoding procedure to transmit classical information in a quantum channel which, saturating asymptotically the Holevo bound, achieves the optimal rate of the communication line. In contrast to previous proposals, it is based on performing a sequence of projective yes-no measurements which in N steps determines which codeword was sent by the sender (N being the number of the codewords). Our analysis shows that, as long as N is below the limit imposed by the Holevo bound, the error probability can be sent to zero asymptotically in the length of the codewords.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevA.85.012302
