Inequivalence of entanglement, steering, and Bell nonlocality for general measurements
By Marco T'ulio Quintino, Tamás Vértesi, Daniel Cavalcanti, Remigiusz Augusiak, Maciej Demianowicz, Antonio Acín, Nicolas Brunner. 2015
195 citations recorded by the source corpus.
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.”
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/aaf4b90fa9e91cc56adbca9df7c621f971749478
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In Artificial Intelligence
In Atomic and Molecular Physics, and Optics
In Statistical and Nonlinear Physics
Citations in the corpus
- Quantum steering (2019, methodology): “Most of the results on quantum steering, in this case, rely on the idea of adding sufficient noise to the state such that an LHS for simpler measurements (e.g., projective measurements) can be turned into an LHS model for POVMs (Hirsch et al., 2013; Quintino et al., 2015; Tischler et al., 2018).”