Weak Values from Displacement Currents in Multiterminal Electron Devices

D. Marian, N. Zanghì, X. Oriols

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22 Citations (Scopus)


© 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
Issue number11
Publication statusPublished - 18 Mar 2016


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