Interaction-Free Measurement with Electrons

Amy E. Turner*, Cameron W. Johnson, Pieter Kruit, Benjamin J. McMorran

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)
150 Downloads (Pure)

Abstract

Here, we experimentally demonstrate interaction-free measurements with electrons using a novel electron Mach-Zehnder interferometer. The flexible two-grating electron interferometer is constructed in a conventional transmission electron microscope and achieves high contrast in discrete output detectors, tunable alignment with independently movable beam splitters, and scanning capabilities for imaging. With this path-separated electron interferometer, which closely matches theoretical expectations, we demonstrate electron interaction-free measurements with an efficiency of 14±1%. Implementing this quantum protocol in electron imaging opens a path toward interaction-free electron microscopy.

Original languageEnglish
Article number110401
Pages (from-to)6
JournalPhysical Review Letters
Volume127
Issue number11
DOIs
Publication statusPublished - 2021

Fingerprint

Dive into the research topics of 'Interaction-Free Measurement with Electrons'. Together they form a unique fingerprint.

Cite this