Scientific article
Open access

Single-electron entanglement and nonlocality

Published inNew journal of physics, vol. 18
Publication date2016

Motivated by recent progress in electron quantum optics, we revisit the question of single-electron entanglement, specifically whether the state of a single electron in a superposition of two separate spatial modes should be considered entangled. We first discuss a gedanken experiment with single-electron sources and detectors, and demonstrate deterministic (i. e. without post-selection) Bell inequality violation. This implies that the single-electron state is indeed entangled and, furthermore, nonlocal. We then present an experimental scheme where single-electron entanglement can be observed via measurements of the average currents and zero-frequency current cross-correlators in an electronic Hanbury Brown-Twiss interferometer driven by Lorentzian voltage pulses. We show that single-electron entanglement is detectable under realistic operating conditions. Our work settles the question of single-electron entanglement and opens promising perspectives for future experiments.

  • arxiv : cond-mat.mes-hall
Note15 pages, 2 figures
Citation (ISO format)
DASENBROOK, David et al. Single-electron entanglement and nonlocality. In: New journal of physics, 2016, vol. 18. doi: 10.1088/1367-2630/18/4/043036
Main files (1)
Article (Accepted version)
ISSN of the journal1367-2630

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