Scientific article

Demonstration of Quantum Nonlocality in the Presence of Measurement Dependence

Published inPhysical review letters, vol. 114, no. 22, 220404
Publication date2015

Quantum nonlocality stands as a resource for device independent quantum information processing (DIQIP), such as, for instance, device independent quantum key distribution. We investigate, exper- imentally, the assumption of limited measurement dependence, i.e., that the measurement settings used in Bell inequality tests or DIQIP are partially influenced by the source of entangled particle and/or by an adversary. Using a recently derived Bell-like inequality [G. Pütz, Phys. Rev. Lett. 113, 190402 (2014)] and a 99% fidelity source of partially entangled polarization photonic qubits, we obtain a clear violation of the inequality, excluding a much larger range of measurement dependent local models than would be possible with an adapted Clauser-Horne-Shimony-Holt (CHSH) inequality. It is therefore shown that the measurement independence assumption can be widely relaxed while still demonstrating quantum nonlocality.

Research group
Citation (ISO format)
AKTAS, Djeylan et al. Demonstration of Quantum Nonlocality in the Presence of Measurement Dependence. In: Physical review letters, 2015, vol. 114, n° 22, p. 220404. doi: 10.1103/PhysRevLett.114.220404
Main files (1)
Article (Published version)
ISSN of the journal0031-9007

Technical informations

Creation05/27/2016 2:17:00 AM
First validation05/27/2016 2:17:00 AM
Update time03/15/2023 12:22:48 AM
Status update03/15/2023 12:22:47 AM
Last indexation05/02/2024 5:27:29 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack