Passive quantum error correction of linear optics networks through error averaging

Ryan J. Marshman, Austin P. Lund, Peter P. Rohde, and Timothy C. Ralph
Phys. Rev. A 97, 022324 – Published 15 February 2018

Abstract

We propose and investigate a method of error detection and noise correction for bosonic linear networks using a method of unitary averaging. The proposed error averaging does not rely on ancillary photons or control and feedforward correction circuits, remaining entirely passive in its operation. We construct a general mathematical framework for this technique and then give a series of proof of principle examples including numerical analysis. Two methods for the construction of averaging are then compared to determine the most effective manner of implementation and probe the related error thresholds. Finally we discuss some of the potential uses of this scheme.

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  • Received 24 September 2017

DOI:https://doi.org/10.1103/PhysRevA.97.022324

©2018 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

Ryan J. Marshman1,*, Austin P. Lund1,†, Peter P. Rohde2,3,‡, and Timothy C. Ralph1

  • 1Centre for Quantum Computation and Communication Technology, Department of Mathematics and Physics, The University of Queensland, St. Lucia, Queensland 4072, Australia
  • 2Centre for Quantum Software and Information, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, New South Wales 2007, Australia
  • 3Hearne Institute for Theoretical Physics and Department of Physics & Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA

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Issue

Vol. 97, Iss. 2 — February 2018

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