Quantum fourier transform over symmetric groups

  • Authors:
  • Yasuhito Kawano;Hiroshi Sekigawa

  • Affiliations:
  • NTT Communication Science Laboratories, Kanagawa, Japan;Tokai University, Kanagawa, Japan

  • Venue:
  • Proceedings of the 38th international symposium on International symposium on symbolic and algebraic computation
  • Year:
  • 2013

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Abstract

This paper proposes an O(n4) quantum Fourier transform (QFT) algorithm over symmetric group Sn, the fastest QFT algorithm of its kind. We propose a fast Fourier transform algorithm over symmetric group Sn, which consists of O(n3) multiplications of unitary matrices, and then transform it into a quantum circuit form. The QFT algorithm can be applied to constructing the standard algorithm of the hidden subgroup problem.