Wigner-function description of EPR experiment
| dc.creator | Franco, Riccardo | |
| dc.date | 2007-01-12 | |
| dc.date.accessioned | 2026-07-07T07:40:44Z | |
| dc.date.available | 2026-07-07T07:40:44Z | |
| dc.description | We provide a detailed description of the EPR paradox (in the Bohm version) for a two qubit-state in the discrete Wigner function formalism. We compare the probability distributions for two qubit relevant to simultaneously-measurable observables (computed from the Wigner function) with the probability distributions representing two perfectly-correlated classic particles in a discrete phase-space. We write in both cases the updating formulae after a measure, thus obtaining a mathematical definition of \textit{classic collapse} and \textit{quantum collapse}. We study, with the EPR experiment, the joint probability distributions of Alice's and Bob's qubit before and after the measure, analyzing the non-local effects. In particular, we give a more precise definition of locality, which we call m-locality: we show that quantum systems may violate this kind of locality, thus preserving, in an EPR-like argument, the completeness of Quantum Mechanics. | |
| dc.description | 8 pages | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0701075 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0701075 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/121867 | |
| dc.subject | Quantum Physics | |
| dc.title | Wigner-function description of EPR experiment | |
| dc.type | text |