Synchronization in networks of mutually delay-coupled phase-locked loops

Electronic components that perform tasks in a concerted way rely on a common time reference. For instance, parallel computing demands synchronous clocking of multiple cores or processors to reliably carry out joint computations. Here, we show that mutually coupled phase-locked loops (PLLs) enable sy...

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Main Authors: Alexandros Pollakis, Lucas Wetzel, David J Jörg, Wolfgang Rave, Gerhard Fettweis, Frank Jülicher
Format: Article
Language:English
Published: IOP Publishing 2014-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/16/11/113009
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author Alexandros Pollakis
Lucas Wetzel
David J Jörg
Wolfgang Rave
Gerhard Fettweis
Frank Jülicher
author_facet Alexandros Pollakis
Lucas Wetzel
David J Jörg
Wolfgang Rave
Gerhard Fettweis
Frank Jülicher
author_sort Alexandros Pollakis
collection DOAJ
description Electronic components that perform tasks in a concerted way rely on a common time reference. For instance, parallel computing demands synchronous clocking of multiple cores or processors to reliably carry out joint computations. Here, we show that mutually coupled phase-locked loops (PLLs) enable synchronous clocking in large-scale systems with transmission delays. We present a phase description of coupled PLLs that includes filter kernels and delayed signal transmission. We find that transmission delays in the coupling enable the existence of stable synchronized states, while instantaneously coupled PLLs do not tend to synchronize. We show how filtering and transmission delays govern the collective frequency and the time scale of synchronization.
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spelling doaj.art-11dbbede4b8a43d988be30a38d8ff9a32023-08-08T11:21:23ZengIOP PublishingNew Journal of Physics1367-26302014-01-01161111300910.1088/1367-2630/16/11/113009Synchronization in networks of mutually delay-coupled phase-locked loopsAlexandros Pollakis0Lucas Wetzel1David J Jörg2Wolfgang Rave3Gerhard Fettweis4Frank Jülicher5Technische Universität Dresden , Vodafone Chair, Dresden, Germany; Center for Advancing Electronics Dresden cfAED , Dresden, GermanyMax Planck Institute for the Physics of Complex Systems , Dresden, Germany; Center for Advancing Electronics Dresden cfAED , Dresden, GermanyMax Planck Institute for the Physics of Complex Systems , Dresden, Germany; Center for Advancing Electronics Dresden cfAED , Dresden, GermanyTechnische Universität Dresden , Vodafone Chair, Dresden, Germany; Center for Advancing Electronics Dresden cfAED , Dresden, GermanyTechnische Universität Dresden , Vodafone Chair, Dresden, Germany; Center for Advancing Electronics Dresden cfAED , Dresden, GermanyMax Planck Institute for the Physics of Complex Systems , Dresden, Germany; Center for Advancing Electronics Dresden cfAED , Dresden, GermanyElectronic components that perform tasks in a concerted way rely on a common time reference. For instance, parallel computing demands synchronous clocking of multiple cores or processors to reliably carry out joint computations. Here, we show that mutually coupled phase-locked loops (PLLs) enable synchronous clocking in large-scale systems with transmission delays. We present a phase description of coupled PLLs that includes filter kernels and delayed signal transmission. We find that transmission delays in the coupling enable the existence of stable synchronized states, while instantaneously coupled PLLs do not tend to synchronize. We show how filtering and transmission delays govern the collective frequency and the time scale of synchronization.https://doi.org/10.1088/1367-2630/16/11/113009phase-locked loopstransmission delaysynchronizationmutual couplingfiltering05.45.Xt
spellingShingle Alexandros Pollakis
Lucas Wetzel
David J Jörg
Wolfgang Rave
Gerhard Fettweis
Frank Jülicher
Synchronization in networks of mutually delay-coupled phase-locked loops
New Journal of Physics
phase-locked loops
transmission delay
synchronization
mutual coupling
filtering
05.45.Xt
title Synchronization in networks of mutually delay-coupled phase-locked loops
title_full Synchronization in networks of mutually delay-coupled phase-locked loops
title_fullStr Synchronization in networks of mutually delay-coupled phase-locked loops
title_full_unstemmed Synchronization in networks of mutually delay-coupled phase-locked loops
title_short Synchronization in networks of mutually delay-coupled phase-locked loops
title_sort synchronization in networks of mutually delay coupled phase locked loops
topic phase-locked loops
transmission delay
synchronization
mutual coupling
filtering
05.45.Xt
url https://doi.org/10.1088/1367-2630/16/11/113009
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