Weak Values from Displacement Currents in Multiterminal Electron Devices

D. Marian, N. Zanghì, X. Oriols

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22 Citations (Scopus)

Abstract

© 2016 American Physical Society. 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.
Original languageEnglish
Article number110404
JournalPhysical Review Letters
Volume116
Issue number11
DOIs
Publication statusPublished - 18 Mar 2016

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