Quantum list decoding from quantumly corrupted codewords for classical block codes of polynomially small rate

  • Authors:
  • Tomoyuki Yamakami

  • Affiliations:
  • University of Aizu, Ikki-machi, Fukushima, Japan

  • Venue:
  • CATS '07 Proceedings of the thirteenth Australasian symposium on Theory of computing - Volume 65
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

Abstract

Our task of quantum list decoding for a classical block code is to recover from a given quantumly corrupted codeword a short list containing all messages whose codewords have high "presence" in this quantumly corrupted codeword. All known families of efficiently quantum list decodable codes, nonetheless, have exponentially-small message rate. We show that certain generalized Reed-Solomon codes concatenated with Hadamard codes of polynomially-small rate and constant codeword alphabet size have efficient quantum list decoding algorithms, provided that target codewords should have relatively high presence in a given quantumly corrupted codeword.