UNIGE document Scientific Article
previous document  unige:83942  next document
add to browser collection

Demonstration of Quantum Nonlocality in the Presence of Measurement Dependence

Aktas, Djeylan
Tanzilli, Sébastien
Published in Physical Review Letters. 2015, vol. 114, no. 22, p. 220404
Abstract 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.
Full text
Research group Groupe Gisin
(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. https://archive-ouverte.unige.ch/unige:83942

132 hits

0 download


Deposited on : 2016-05-30

Export document
Format :
Citation style :