UNIGE document Scientific Article
previous document  unige:90700  next document
add to browser collection

Entanglement without hidden nonlocality

Vértesi, Tamás
Published in New journal of physics. 2016, vol. 18, no. 11, 113019
Abstract We consider Bell tests in which the distant observers can perform local filtering before testing a Bell inequality. Notably, in this setup, certain entangled states admitting a local hidden variable model in the standard Bell scenario can nevertheless violate a Bell inequality after filtering, displaying so-called hidden nonlocality. Here we ask whether all entangled states can violate a Bell inequality after well-chosen local filtering. We answer this question in the negative by showing that there exist entangled states without hidden nonlocality. Specifically, we prove that some two-qubit Werner states still admit a local hidden variable model after any possible local filtering on a single copy of the state.
Full text
Article (Accepted version) (566 Kb) - public document Free access
(ISO format)
HIRSCH, Flavien et al. Entanglement without hidden nonlocality. In: New journal of physics, 2016, vol. 18, n° 11, p. 113019. doi: 10.1088/1367-2630/18/11/113019 https://archive-ouverte.unige.ch/unige:90700

386 hits



Deposited on : 2016-12-21

Export document
Format :
Citation style :