Uniting Quantum Processing Nodes of Cavity-Coupled Ions with Rare-Earth Quantum Repeaters Using Single-Photon Pulse Shaping Based on Atomic Frequency Comb

We present an architecture for remotely connecting cavity-coupled trapped ions via a quantum repeater based on rare-earth-doped crystals. The main challenge for its realization lies in interfacing these two physical platforms, which produce photons with a typical temporal mismatch of one or two orders of magnitude. To address this, we propose an efficient protocol that enables custom temporal reshaping of single-photon pulses while preserving purity. Our approach is to modify a commonly used memory protocol, called atomic frequency comb, for systems exhibiting inhomogeneous broadening like rare-earth-doped crystals. Pertaining to a growing interest in hybrid quantum information systems designed to exploit the distinct advantages of diverse physical components, our results offer a viable solution for uniting quantum processing nodes with a quantum repeater backbone.

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Publication Details

Journal
Physical Review Letters
Published
2025-11-10
DOI
https://doi.org/10.1103/hvsx-cx2d
Citations
1
Primary Topic
Quantum optics and atomic interactions
Type
article
Field-Weighted Citation Impact
1.25
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article

Uniting Quantum Processing Nodes of Cavity-Coupled Ions with Rare-Earth Quantum Repeaters Using Single-Photon Pulse Shaping Based on Atomic Frequency Comb

B. P. Lanyon, Sören Wengerowsky, Anders S. Sørensen, Hugues de Riedmatten et al.
1 citations
Physical Review Letters
Quantum optics and atomic interactions
1.25
article

Uniting Quantum Processing Nodes of Cavity-Coupled Ions with Rare-Earth Quantum Repeaters Using Single-Photon Pulse Shaping Based on Atomic Frequency Comb

B. P. Lanyon, Sören Wengerowsky, Anders S. Sørensen, Hugues de Riedmatten, Leo Feldmann, Nicolas Sangouard, Tracy E. Northup, Pierre Cussenot, B. Grivet
article en
1 citations

Abstract

We present an architecture for remotely connecting cavity-coupled trapped ions via a quantum repeater based on rare-earth-doped crystals. The main challenge for its realization lies in interfacing these two physical platforms, which produce photons with a typical temporal mismatch of one or two orders of magnitude. To address this, we propose an efficient protocol that enables custom temporal reshaping of single-photon pulses while preserving purity. Our approach is to modify a commonly used memory protocol, called atomic frequency comb, for systems exhibiting inhomogeneous broadening like rare-earth-doped crystals. Pertaining to a growing interest in hybrid quantum information systems designed to exploit the distinct advantages of diverse physical components, our results offer a viable solution for uniting quantum processing nodes with a quantum repeater backbone.

Physical Review LettersVol. 135(24)
Institució Catalana de Recerca i Estudis Avançats (ES), Institute of Photonic Sciences (ES), Universität Innsbruck (AT), Shanghai Institute for Science of Science (CN), Barcelona Institute of Science and Technology (ES), Institute of Science and Technology, Direction Générale de l'Armement (FR)
Openalex Percentile: Top 15%
Quantum optics and atomic interactions
1.25
DOISourceOpenAlex
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