Weak Values from Displacement Currents in Multiterminal Electron Devices
Abstract
Weak values allow the measurement of observables associated with noncommuting operators. Up to now, position-momentum weak values have been mainly developed for (relativistic) photons. In this Letter, a proposal for the measurement of such weak values in typical electronic devices is presented. Inspired by the Ramo-Shockley-Pellegrini theorem that provides a relation between current and electron velocity, it is shown that the displacement current measured in multiterminal configurations can provide either a weak measurement of the momentum or strong measurement of position. This proposal opens new opportunities for fundamental and applied physics with state-of-the-art electronic technology. As an example, a setup for the measurement of the Bohmian velocity of (nonrelativistic) electrons is presented and tested with numerical experiments.
Cite
@article{arxiv.1508.00248,
title = {Weak Values from Displacement Currents in Multiterminal Electron Devices},
author = {Damiano Marian and Nino Zanghì and Xavier Oriols},
journal= {arXiv preprint arXiv:1508.00248},
year = {2016}
}
Comments
10 pages, 4 figures, main text and supplemental material