Rey-Domínguez, J. and Razavi, M. (2025) Quantum key distribution over an encoded repeater chain with sequential swapping. In: 2025 International Conference on Quantum Communications, Networking, and Computing (QCNC). 2025 International Conference on Quantum Communications, Networking, and Computing (QCNC), 31 Mar - 02 Apr 2025, Nara, Japan. Institute of Electrical and Electronics Engineers (IEEE) , pp. 323-330. ISBN 979-8-3315-3160-7
Abstract
Most current proposals for entanglement distribution networks assume a connection-oriented approach, where resources along a path may be reserved before the start of the session. This strategy, however, does not match the common practice in the existing infrastructure for the Internet, which relies on connectionless packet switching. In our work, we study how a hop-by-hop teleportation can be used to perform entanglement distribution across a network without any prior resource reservation. Specifically, we investigate the attainable secret key generation rate between two users employing this protocol in a repeater chain setup. We analyze this scenario for deterministic quantum repeaters with and without encoding, where we consider a three-qubit repetition code for error detection in the former case. Typical models for the operational errors in these protocols are considered. Our results suggest that the usage of quantum error detection schemes will enable trust-free secret key distribution at distances of interest.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2025 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | Index Terms—Quantum repeaters; quantum communications; quantum networks; quantum key distribution; quantum cryptography |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 02 Jun 2025 15:20 |
Last Modified: | 02 Jun 2025 15:20 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
Identification Number: | 10.1109/qcnc64685.2025.00058 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:227261 |