Entanglement distribution revealed by macroscopic observations
| dc.creator | Kofler, Johannes | |
| dc.creator | Brukner, Caslav | |
| dc.date | 2006-03-23 | |
| dc.date | 2006-11-17 | |
| dc.date.accessioned | 2026-07-07T07:08:06Z | |
| dc.date.available | 2026-07-07T07:08:06Z | |
| dc.description | What can we learn about entanglement between individual particles in macroscopic samples by observing only the collective properties of the ensembles? Using only a few experimentally feasible collective properties, we establish an entanglement measure between two samples of spin-1/2 particles (as representatives of two-dimensional quantum systems). This is a tight lower bound for the average entanglement between all pairs of spins in general and is equal to the average entanglement for a certain class of systems. We compute the entanglement measures for explicit examples and show how to generalize the method to more than two samples and multi-partite entanglement. | |
| dc.description | 4 pages, 2 figures, revised and published version | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0603208 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0603208 | |
| dc.identifier | Phys. Rev. A 74, 050304(R) (2006) | |
| dc.identifier | doi:10.1103/PhysRevA.74.050304 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/110632 | |
| dc.subject | Quantum Physics | |
| dc.title | Entanglement distribution revealed by macroscopic observations | |
| dc.type | text |