Experimental entanglement restoration on entanglement-breaking channels
| dc.creator | Sciarrino, Fabio | |
| dc.creator | Nagali, Eleonora | |
| dc.creator | De Martini, Francesco | |
| dc.creator | Gavenda, Miroslav | |
| dc.creator | Filip, Radim | |
| dc.date | 2008-04-22 | |
| dc.date.accessioned | 2026-07-07T09:34:02Z | |
| dc.date.available | 2026-07-07T09:34:02Z | |
| dc.description | Quantum entanglement, a fundamental property ensuring security of key distribution and efficiency of quantum computing, is extremely sensitive to decoherence. Different procedures have been developed in order to recover entanglement after propagation over a noisy channel. However, besides a certain amount of noise, entanglement is completely lost. In this case the channel is called entanglement breaking and any multi-copy distillation methods cannot help to restore even a bit of entanglement. We report the experimental realization of a new method which restores entanglement from a single photon entanglement breaking channel. The method based on measurement of environmental light and quantum feed-forward correction can reveal entanglement even if this one completely disappeared. This protocol provides new elements to overcome decoherence effects. | |
| dc.description | 6 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/0804.3542 | |
| dc.identifier | http://arxiv.org/abs/0804.3542 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/159343 | |
| dc.subject | Quantum Physics | |
| dc.title | Experimental entanglement restoration on entanglement-breaking channels | |
| dc.type | text |