Classical and quantum: some mutual clarifications
| dc.creator | Scarani, Valerio | |
| dc.date | 2003-09-15 | |
| dc.date.accessioned | 2026-07-07T06:07:49Z | |
| dc.date.available | 2026-07-07T06:07:49Z | |
| dc.description | This paper presents two unconventional links between quantum and classical physics. The first link appears in the study of quantum cryptography. In the presence of a spy, the quantum correlations shared by Alice and Bob are imperfect. One can either process the quantum information, recover perfect correlations and finally measure the quantum systems; or, one can perform the measurements first and then process the classical information. These two procedures tolerate exactly the same error rate for a wide class of attacks by the spy. The m second link is drawn between the quantum notions of "no-cloning theorem" and "weak-measurements with post-selection", and simple experiments using classical polarized light and ordinary telecom devices. | |
| dc.description | 13 pages; Proceedings of the Workshop "Multiscale Methods in Quantum Mechanics", Rome, 16-20 December, 2002 | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0309113 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0309113 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/91430 | |
| dc.subject | Quantum Physics | |
| dc.title | Classical and quantum: some mutual clarifications | |
| dc.type | text |