Distilling Non-Locality
| dc.creator | Forster, Manuel | |
| dc.creator | Winkler, Severin | |
| dc.creator | Wolf, Stefan | |
| dc.date | 2008-09-18 | |
| dc.date | 2009-03-05 | |
| dc.date.accessioned | 2026-07-07T12:55:54Z | |
| dc.date.available | 2026-07-07T12:55:54Z | |
| dc.description | Two parts of an entangled quantum state can have a correlation in their joint behavior under measurements that is unexplainable by shared classical information. Such correlations are called non-local and have proven to be an interesting resource for information processing. Since non-local correlations are more useful if they are stronger, it is natural to ask whether weak non-locality can be amplified. We give an affirmative answer by presenting the first protocol for distilling non-locality in the framework of generalized non-signaling theories. Our protocol works for both quantum and non-quantum correlations. This shows that in many contexts, the extent to which a single instance of a correlation can violate a CHSH inequality is not a good measure for the usefulness of non-locality. A more meaningful measure follows from our results. | |
| dc.description | Revised abstract, introduction and conclusion. Accepted by PRL | |
| dc.identifier | https://arxiv.org/abs/0809.3173 | |
| dc.identifier | http://arxiv.org/abs/0809.3173 | |
| dc.identifier | Phys. Rev. Lett. 102, 120401 (2009) | |
| dc.identifier | doi:10.1103/PhysRevLett.102.120401 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/224410 | |
| dc.subject | Quantum Physics | |
| dc.title | Distilling Non-Locality | |
| dc.type | text |