Decay and Resonance of Coherent States

T.P. Valkering, E. van Groesen

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    We describe examples of two phenomena: the decay of a nonlinear coherent state under the influence of friction and the resonance of such a state due to a time periodic external forcing. In the latter case a period doubling transition to chaotic motion can be found as function of a parameter in the forcing. Essential is that in each case the state remains spatially coherent. The main features of these phenomena can be described with only two observables: say the amplitude and the phase of the coherent state. Here one method is given to choose these observables properly and to formulate their equations of motion in each case.
    Original languageEnglish
    Title of host publicationNonlinear Dynamics in Engineering Systems
    Subtitle of host publicationIUTAM symposium, Stuttgart, FRG, August 21-25, 1989
    EditorsWerner O. Schiehlen
    Place of PublicationBerlin
    ISBN (Print)9783540502005
    Publication statusPublished - 1990
    EventIUTAM Symposium on Nonlinear Dynamics in Engineering Systems 1989 - Stuttgart, Germany
    Duration: 21 Aug 198925 Aug 1989


    ConferenceIUTAM Symposium on Nonlinear Dynamics in Engineering Systems 1989


    • IR-56250


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