Classical correlation alone supplies the anomaly to weak values
Quantum Physics
2014-10-30 v1
Abstract
The question of what is genuinely quantum about weak values is only ever going to elicit strongly subjective opinions---it is not a scientific question. Good questions, when comparing theories, are operational---they deal with the unquestionable outcomes of experiment. We give the anomalous shift of weak values an objective meaning through a generalization to an operational definition of anomalous post-selected averages. We show the presence of these averages necessitate correlations in every model giving rise to them---quantum or classical. Characterizing such correlations shows that they are ubiquitous. We present the simplest classical example without the need of disturbance realizing these generalized anomalous weak values.
Cite
@article{arxiv.1410.8067,
title = {Classical correlation alone supplies the anomaly to weak values},
author = {Christopher Ferrie and Joshua Combes},
journal= {arXiv preprint arXiv:1410.8067},
year = {2014}
}