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Phase and frequency shifts of two nonlinearly coupled oscillators

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Zeitschrift für Physik B Condensed Matter

Abstract

We analyze two nonlinearly phase coupled oscillators with eigenfrequencies ω1and ω2, where n\gw1=m\gw2+\gp, with integern andm. For \gh=0 there are up to four stable synchronized states which differ from each other only by the difference of the oscillators\rs phases. The number of different synchronized states depends on the coupling constants. If \gh does not vanish phase shifts and frequency shifts may occur givig rise to stable synchronized states which also differ from each other due to the frequencies. By means of the center manifold theorem we calculate these shifts explicitely. Different coupling constants are investigated: symmetrical, homogenously asymmetrical and arbitrary coupling constants. Our results point out the decisive influence of the symmetry of the coupling constants upon the frequency and phase shifts. Moreover the local stability of the unperturbed synchronized state (i.e. for \gh=0) determines the magnitude of the frequency and phase shifts.

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  1. Klinik, Heinrich-Heine-Universität, Neurologische Moorenstrasse, 5, D-40225, Düsseldorf, Germany

    Peter Tass

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  1. Peter Tass
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Tass, P. Phase and frequency shifts of two nonlinearly coupled oscillators. Z. Phys. B - Condensed Matter 99, 111–121 (1995). https://doi.org/10.1007/s002570050017

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  • DOI: https://doi.org/10.1007/s002570050017

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