2017/07/31 by Adeline Orieux, Marc Kaplan, Vivien Venuti +3
Neuroscience · Physics and Astronomy · #Force Microscopy Techniques and Applications #Frame (networking) #Laser beams #Light beam #Mechanical and Optical Resonators #Neural dynamics and brain function #Power (physics) #Signal processing #quant-ph
paper · pdf · doi:10.1088/2040-8986/aab031
published as J. Opt. 20, 044006 (2018) · 9 pages, 7 figures (including Appendix)
openalex created_date 2017/08/08 · arxiv created 2017/10/18 · openalex publication_date 2018/02/16 · arxiv updated 2018/04/04 · openalex updated_date 2026/08/05
Abstract Steering, a quantum property stronger than entanglement but weaker than non-locality in the quantum correlation hierarchy, is a key resource for one-sided device-independent quantum key distribution applications, in which only one of the communicating parties is trusted. A fine-grained steering inequality was introduced in (2014 Phys. Rev. A 90 050305), enabling for the first time the detection of steering in all steerable two-qubit Werner states using only two measurement settings. Here, we numerically and experimentally investigate this inequality for generalized Werner states and successfully detect steerability in a wide range of two-photon polarization-entangled Bell local states generated by a parametric down-conversion source.