Statistical Estimation of the Efficiency of Quantum State Tomography Protocols

Yu. I. Bogdanov, G. Brida, M. Genovese, S. P. Kulik, E. V. Moreva, and A. P. Shurupov
Phys. Rev. Lett. 105, 010404 – Published 1 July 2010

Abstract

A novel operational method for estimating the efficiency of quantum state tomography protocols is suggested. It is based on a priori estimation of the quality of an arbitrary protocol by means of universal asymptotic fidelity distribution and condition number, which takes minimal value for better protocol. We prove the adequacy of the method both with numerical modeling and through the experimental realization of several practically important protocols of quantum state tomography.

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  • Received 18 February 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.010404

©2010 American Physical Society

Authors & Affiliations

Yu. I. Bogdanov1, G. Brida2, M. Genovese2, S. P. Kulik3, E. V. Moreva4,5, and A. P. Shurupov2,6

  • 1Institute of Physics and Technology, Russian Academy of Sciences, 117218, Moscow, Russia
  • 2INRIM, I-10135, Torino, Italy
  • 3Faculty of Physics, Moscow State University, 119992, Moscow, Russia
  • 4Moscow National Research Nuclear University “MEPHI”, 115409, Moscow, Russia
  • 5International Laser Center of M.V. Lomonosov, Moscow State University, 119991, Moscow, Russia
  • 6Dipartimento di Fisica, Politecnico di Torino, I-10129, Torino, Italy

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Issue

Vol. 105, Iss. 1 — 2 July 2010

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