Coupling free electrons to a trapped-ion quantum computer

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

doi:10.48550/arXiv.2601.11446

Coupling free electrons to a trapped-ion quantum computer

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

Research output: Working paper and reports › Preprint

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.

Original language	English
Number of pages	15
DOIs	https://doi.org/10.48550/arXiv.2601.11446
Publication status	Published - 16 Jan 2026

Publication series

Name	arXiv.org
No.	2601.11446

Fields of science

102040 Quantum computing
103025 Quantum mechanics

JKU Focus areas

Digital Transformation

Access to Document

10.48550/arXiv.2601.11446

QCEM: Quantum-Computer-Enhanced Electron Microscopy
Juffmann, T. (PI), Haslinger, P. (Co-PI), Březinová, I. (Co-PI), Schindler, P. (Co-PI), Küng, R. (Co-PI) & Egginger, S. (Researcher)
01.09.2023 → 01.08.2026
Project: Funded research › FWF - Austrian Science Fund

Cite this

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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.",

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AU - Pescoller, Elias

AU - Beltrán-Romero, Santiago

AU - Egginger, Sebastian

AU - Jungwirth, Nicolas

AU - Zanetti, Martino

AU - Hornof, Dominik

AU - Seifner, Michael S.

AU - Březinová, Iva

AU - Haslinger, Philipp

AU - Juffmann, Thomas

AU - Kofler, Johannes

AU - Schindler, Philipp

AU - Rätzel, Dennis

N1 - 15 pages, 5 figures

PY - 2026/1/16

Y1 - 2026/1/16

N2 - 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.

AB - 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.

KW - quant-ph

U2 - 10.48550/arXiv.2601.11446

DO - 10.48550/arXiv.2601.11446

M3 - Preprint

T3 - arXiv.org

BT - Coupling free electrons to a trapped-ion quantum computer

ER -

Coupling free electrons to a trapped-ion quantum computer

Abstract

Publication series

Fields of science

JKU Focus areas

Access to Document

Projects

QCEM: Quantum-Computer-Enhanced Electron Microscopy

Cite this