Qubit Rate Modulation-Based Time Synchronization Mechanism for Multinode Quantum Networks

The combination of quantum and telecommunication networks enables to revolutionize the way information is used, offering unparalleled capabilities and making it an ideal choice for many critical applications. In this sense, quantum protocols generally have a unique requirement to have strict time sy...

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Main Author: Marc Jofre
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Transactions on Quantum Engineering
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10891179/
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author Marc Jofre
author_facet Marc Jofre
author_sort Marc Jofre
collection DOAJ
description The combination of quantum and telecommunication networks enables to revolutionize the way information is used, offering unparalleled capabilities and making it an ideal choice for many critical applications. In this sense, quantum protocols generally have a unique requirement to have strict time synchronization in order to operate, which generally consume quantum resources of part of the exchanged qubits. Accordingly, work demonstrates and characterizes a temporal alignment mechanism for quantum networks based on frequency testing, allowing to preserve the quantum state of qubits. The time synchronization correction achieved is within 100 ns working at 5 MHz with temporal and relative frequency offsets commonly acquired in quantum links using conventional hardware clocks with temporal stability in the range of <inline-formula> <tex-math notation="LaTeX">$10^{-8}$</tex-math></inline-formula> and 200-ns jitter.
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spelling doaj-art-7efdafc8f8734130b0586d2ea59acdab2025-08-20T02:53:13ZengIEEEIEEE Transactions on Quantum Engineering2689-18082025-01-01611010.1109/TQE.2025.354248410891179Qubit Rate Modulation-Based Time Synchronization Mechanism for Multinode Quantum NetworksMarc Jofre0https://orcid.org/0000-0002-8912-6595Department of Network Engineering, Universitat Polit&#x00E8;cnica de Catalunya, Castelldefels, SpainThe combination of quantum and telecommunication networks enables to revolutionize the way information is used, offering unparalleled capabilities and making it an ideal choice for many critical applications. In this sense, quantum protocols generally have a unique requirement to have strict time synchronization in order to operate, which generally consume quantum resources of part of the exchanged qubits. Accordingly, work demonstrates and characterizes a temporal alignment mechanism for quantum networks based on frequency testing, allowing to preserve the quantum state of qubits. The time synchronization correction achieved is within 100 ns working at 5 MHz with temporal and relative frequency offsets commonly acquired in quantum links using conventional hardware clocks with temporal stability in the range of <inline-formula> <tex-math notation="LaTeX">$10^{-8}$</tex-math></inline-formula> and 200-ns jitter.https://ieeexplore.ieee.org/document/10891179/Communicationsdistributed clockslinksmechanismsnetwork interoperabilityprojective measurements
spellingShingle Marc Jofre
Qubit Rate Modulation-Based Time Synchronization Mechanism for Multinode Quantum Networks
IEEE Transactions on Quantum Engineering
Communications
distributed clocks
links
mechanisms
network interoperability
projective measurements
title Qubit Rate Modulation-Based Time Synchronization Mechanism for Multinode Quantum Networks
title_full Qubit Rate Modulation-Based Time Synchronization Mechanism for Multinode Quantum Networks
title_fullStr Qubit Rate Modulation-Based Time Synchronization Mechanism for Multinode Quantum Networks
title_full_unstemmed Qubit Rate Modulation-Based Time Synchronization Mechanism for Multinode Quantum Networks
title_short Qubit Rate Modulation-Based Time Synchronization Mechanism for Multinode Quantum Networks
title_sort qubit rate modulation based time synchronization mechanism for multinode quantum networks
topic Communications
distributed clocks
links
mechanisms
network interoperability
projective measurements
url https://ieeexplore.ieee.org/document/10891179/
work_keys_str_mv AT marcjofre qubitratemodulationbasedtimesynchronizationmechanismformultinodequantumnetworks