[2601.11446] Coupling free electrons to a trapped-ion quantum computer

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Quantum Physics

arXiv:2601.11446 (quant-ph)

[Submitted on 16 Jan 2026]

Title:Coupling free electrons to a trapped-ion quantum computer

Authors:Elias Pescoller, Santiago Beltrán-Romero, Sebastian Egginger, Nicolas Jungwirth, Martino Zanetti, Dominik Hornof, Michael S. Seifner, Iva Březinová, Philipp Haslinger, Thomas Juffmann, Johannes Kofler, Philipp Schindler, Dennis Rätzel<br>View a PDF of the paper titled Coupling free electrons to a trapped-ion quantum computer, by Elias Pescoller and Santiago Beltr\'an-Romero and Sebastian Egginger and Nicolas Jungwirth and Martino Zanetti and Dominik Hornof and Michael S. Seifner and Iva B\v{r}ezinov\'a and Philipp Haslinger and Thomas Juffmann and Johannes Kofler and Philipp Schindler and Dennis R\"atzel

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Abstract:Freely propagating electrons may serve as quantum probes that can become coherently correlated with other quantum systems, offering access to advanced metrological resources. We propose a setup that coherently couples free electrons in an electron microscope to a trapped-ion quantum processor, enabling non-destructive, quantum-coherent detection and the accumulation of information across multiple electrons. Our analysis shows that single electrons can induce resolvable qubit excitations, establishing a platform for practical applications such as quantum-enhanced, dose-efficient electron microscopy.

Comments:<br>15 pages, 5 figures

Subjects:

Quantum Physics (quant-ph)

Cite as:<br>arXiv:2601.11446 [quant-ph]

(or<br>arXiv:2601.11446v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2601.11446

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arXiv-issued DOI via DataCite

Submission history<br>From: Elias Pescoller [view email]<br>[v1]<br>Fri, 16 Jan 2026 17:08:48 UTC (891 KB)

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View a PDF of the paper titled Coupling free electrons to a trapped-ion quantum computer, by Elias Pescoller and Santiago Beltr\'an-Romero and Sebastian Egginger and Nicolas Jungwirth and Martino Zanetti and Dominik Hornof and Michael S. Seifner and Iva B\v{r}ezinov\'a and Philipp Haslinger and Thomas Juffmann and Johannes Kofler and Philipp Schindler and Dennis R\"atzel<br>View PDF<br>HTML (experimental)<br>TeX Source

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