Certifying the Building Blocks of Quantum Computers from Bell’s Theorem

Pavel Sekatski, Jean-Daniel Bancal, Sebastian Wagner, and Nicolas Sangouard
Phys. Rev. Lett. 121, 180505 – Published 2 November 2018
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Abstract

Bell’s theorem has been proposed to certify, in a device-independent and robust way, blocks either producing or measuring quantum states. In this Letter, we provide a method based on Bell’s theorem to certify coherent operations for the storage, processing, and transfer of quantum information. This completes the set of tools needed to certify all building blocks of a quantum computer. Our method distinguishes itself by its robustness to experimental imperfections, and so could be used to certify that today’s quantum devices are qualified for usage in future quantum computers.

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  • Received 23 February 2018

DOI:https://doi.org/10.1103/PhysRevLett.121.180505

© 2018 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Pavel Sekatski1,2,*, Jean-Daniel Bancal1,*, Sebastian Wagner1, and Nicolas Sangouard1

  • 1Quantum Optics Theory Group, Universität Basel, Klingelbergstraße 82, CH-4056 Basel, Switzerland
  • 2Institut für Theoretische Physik, Universität Innsbruck, Technikerstraße 21a, A-6020 Innsbruck, Austria

  • *P. S. and J.-D. B. contributed equally to this work.

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Issue

Vol. 121, Iss. 18 — 2 November 2018

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