Experimental semi-device-independent certification of entangled measurements

Adam Bennet, T. Vértesi, Dylan J. Saunders, Nicolas Brunner, G. J. Pryde

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Certifying the entanglement of quantum states with Bell inequalities allows one to guarantee the security of quantum information protocols independently of imperfections in the measuring devices. Here, we present a similar procedure for witnessing entangled measurements, which play a central role in many quantum information tasks. Our procedure is termed semi-device-independent, as it uses uncharacterized quantum preparations of fixed Hilbert space dimension. Using a photonic setup, we experimentally certify an entangled measurement using only measurement statistics. We also apply our techniques to certify unentangled but nevertheless inherently quantum measurements.

Original languageEnglish
Article number080405
JournalPhysical Review Letters
Volume113
Issue number8
DOIs
Publication statusPublished - Aug 22 2014

Fingerprint

certification
Hilbert space
bells
statistics
photonics
preparation
defects

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Experimental semi-device-independent certification of entangled measurements. / Bennet, Adam; Vértesi, T.; Saunders, Dylan J.; Brunner, Nicolas; Pryde, G. J.

In: Physical Review Letters, Vol. 113, No. 8, 080405, 22.08.2014.

Research output: Contribution to journalArticle

Bennet, Adam ; Vértesi, T. ; Saunders, Dylan J. ; Brunner, Nicolas ; Pryde, G. J. / Experimental semi-device-independent certification of entangled measurements. In: Physical Review Letters. 2014 ; Vol. 113, No. 8.
@article{6b38ae717173417ba2ba44a792c4516b,
title = "Experimental semi-device-independent certification of entangled measurements",
abstract = "Certifying the entanglement of quantum states with Bell inequalities allows one to guarantee the security of quantum information protocols independently of imperfections in the measuring devices. Here, we present a similar procedure for witnessing entangled measurements, which play a central role in many quantum information tasks. Our procedure is termed semi-device-independent, as it uses uncharacterized quantum preparations of fixed Hilbert space dimension. Using a photonic setup, we experimentally certify an entangled measurement using only measurement statistics. We also apply our techniques to certify unentangled but nevertheless inherently quantum measurements.",
author = "Adam Bennet and T. V{\'e}rtesi and Saunders, {Dylan J.} and Nicolas Brunner and Pryde, {G. J.}",
year = "2014",
month = "8",
day = "22",
doi = "10.1103/PhysRevLett.113.080405",
language = "English",
volume = "113",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "8",

}

TY - JOUR

T1 - Experimental semi-device-independent certification of entangled measurements

AU - Bennet, Adam

AU - Vértesi, T.

AU - Saunders, Dylan J.

AU - Brunner, Nicolas

AU - Pryde, G. J.

PY - 2014/8/22

Y1 - 2014/8/22

N2 - Certifying the entanglement of quantum states with Bell inequalities allows one to guarantee the security of quantum information protocols independently of imperfections in the measuring devices. Here, we present a similar procedure for witnessing entangled measurements, which play a central role in many quantum information tasks. Our procedure is termed semi-device-independent, as it uses uncharacterized quantum preparations of fixed Hilbert space dimension. Using a photonic setup, we experimentally certify an entangled measurement using only measurement statistics. We also apply our techniques to certify unentangled but nevertheless inherently quantum measurements.

AB - Certifying the entanglement of quantum states with Bell inequalities allows one to guarantee the security of quantum information protocols independently of imperfections in the measuring devices. Here, we present a similar procedure for witnessing entangled measurements, which play a central role in many quantum information tasks. Our procedure is termed semi-device-independent, as it uses uncharacterized quantum preparations of fixed Hilbert space dimension. Using a photonic setup, we experimentally certify an entangled measurement using only measurement statistics. We also apply our techniques to certify unentangled but nevertheless inherently quantum measurements.

UR - http://www.scopus.com/inward/record.url?scp=84907339618&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84907339618&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.113.080405

DO - 10.1103/PhysRevLett.113.080405

M3 - Article

AN - SCOPUS:84907339618

VL - 113

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 8

M1 - 080405

ER -