dc.contributor
Universitat Politècnica de Catalunya. Institut de Ciències Fotòniques
dc.contributor.author
Quintino, Marco Tulio
dc.contributor.author
Vértesi, Tamas
dc.contributor.author
Cavalcanti, Daniel
dc.contributor.author
Augusiak, Remigiusz
dc.contributor.author
Demianowicz, Maciej
dc.contributor.author
Acín dal Maschio, Antonio
dc.contributor.author
Brunner, Nicolas
dc.date.issued
2015-09-08
dc.identifier
https://hdl.handle.net/2117/79010
dc.description.abstract
Einstein-Podolsky-Rosen steering is a form of inseparability in quantum theory commonly acknowledged to be intermediate between entanglement and Bell nonlocality. However, this statement has so far only been proven for a restricted class of measurements, namely, projective measurements. Here we prove that entanglement, one-way steering, two-way steering, and nonlocality are genuinely different considering general measurements, i.e., single round positive-operator-valued measures. Finally, we show that the use of sequences of measurements is relevant for steering tests, as they can be used to reveal “hidden steering.”
dc.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (author's final draft)
dc.format
application/pdf
dc.relation
http://journals.aps.org/pra/abstract/10.1103/PhysRevA.92.032107
dc.relation
PP00P2_138917
dc.rights
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights
Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.subject
Àrees temàtiques de la UPC::Física
dc.subject
Quantum communication
dc.subject
Quàntums, Teoria dels
dc.title
Inequivalence of entanglement, steering, and Bell nonlocality for general measurements
