Quantum Averages of Weak Values
| dc.creator | Aharonov, Yakir | |
| dc.creator | Botero, Alonso | |
| dc.date | 2005-03-30 | |
| dc.date | 2005-08-23 | |
| dc.date.accessioned | 2026-07-07T06:23:20Z | |
| dc.date.available | 2026-07-07T06:23:20Z | |
| dc.description | We re-examine the status of the weak value of a quantum mechanical observable as an objective physical concept, addressing its physical interpretation and general domain of applicability. We show that the weak value can be regarded as a \emph{definite} mechanical effect on a measuring probe specifically designed to minimize the back-reaction on the measured system. We then present a new framework for general measurement conditions (where the back-reaction on the system may not be negligible) in which the measurement outcomes can still be interpreted as \emph{quantum averages of weak values}. We show that in the classical limit, there is a direct correspondence between quantum averages of weak values and posterior expectation values of classical dynamical properties according to the classical inference framework. | |
| dc.description | 13 pages, 6 figures, Revtex 4. Paper has been shortened. Section on large- sample measurements has been removed. The discussion on this topic has been deferred to a future publication | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0503225 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0503225 | |
| dc.identifier | Phys. Rev. A 72, 052111 (2005) | |
| dc.identifier | doi:10.1103/PhysRevA.72.052111 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/96196 | |
| dc.subject | Quantum Physics | |
| dc.title | Quantum Averages of Weak Values | |
| dc.type | text |