Device-Independent Certification of Entangled Measurements

Rafael Rabelo; Melvyn Ho; Daniel Cavalcanti; Nicolas Brunner; Valerio Scarani

doi:10.1103/PhysRevLett.107.050502

Device-Independent Certification of Entangled Measurements

Rafael Rabelo^*, Melvyn Ho, Daniel Cavalcanti, Nicolas Brunner, Valerio Scarani

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

65 Citations (Scopus)

Abstract

We present a device-independent protocol to test if a given black-box measurement device is entangled, that is, has entangled eigenstates. Our scheme involves three parties and is inspired by entanglement swapping; the test uses the Clauser-Horne-Shimony-Holt Bell inequality, checked between each pair of parties. In the case where all particles are qubits, we characterize quantitatively the deviation of the measurement device from a perfect Bell-state measurement.

Original language	English
Article number	050502
Number of pages	4
Journal	Physical Review Letters
Volume	107
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.107.050502
Publication status	Published - 25 Jul 2011

Keywords

QUANTUM
INEQUALITY
VIOLATION
THEOREM
STATES

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title = "Device-Independent Certification of Entangled Measurements",

abstract = "We present a device-independent protocol to test if a given black-box measurement device is entangled, that is, has entangled eigenstates. Our scheme involves three parties and is inspired by entanglement swapping; the test uses the Clauser-Horne-Shimony-Holt Bell inequality, checked between each pair of parties. In the case where all particles are qubits, we characterize quantitatively the deviation of the measurement device from a perfect Bell-state measurement.",

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AU - Rabelo, Rafael

AU - Ho, Melvyn

AU - Cavalcanti, Daniel

AU - Brunner, Nicolas

AU - Scarani, Valerio

PY - 2011/7/25

Y1 - 2011/7/25

N2 - We present a device-independent protocol to test if a given black-box measurement device is entangled, that is, has entangled eigenstates. Our scheme involves three parties and is inspired by entanglement swapping; the test uses the Clauser-Horne-Shimony-Holt Bell inequality, checked between each pair of parties. In the case where all particles are qubits, we characterize quantitatively the deviation of the measurement device from a perfect Bell-state measurement.

AB - We present a device-independent protocol to test if a given black-box measurement device is entangled, that is, has entangled eigenstates. Our scheme involves three parties and is inspired by entanglement swapping; the test uses the Clauser-Horne-Shimony-Holt Bell inequality, checked between each pair of parties. In the case where all particles are qubits, we characterize quantitatively the deviation of the measurement device from a perfect Bell-state measurement.

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KW - INEQUALITY

KW - VIOLATION

KW - THEOREM

KW - STATES

U2 - 10.1103/PhysRevLett.107.050502

DO - 10.1103/PhysRevLett.107.050502

M3 - Article (Academic Journal)

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VL - 107

JO - Physical Review Letters

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Device-Independent Certification of Entangled Measurements

Abstract

Keywords

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