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Transmission thresholds in time-periodically driven nonlinear disordered systems
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics . Linköping University, The Institute of Technology.ORCID iD: 0000-0001-6708-1560
University of Crete.
CNR.
CEA Saclay.
2009 (English)In: EPL, ISSN 0295-5075 , Vol. 86, no 1, p. 10009-Article in journal (Refereed) Published
Abstract [en]

We study energy propagation in locally time-periodically driven disordered nonlinear chains. For frequencies inside the band of linear Anderson modes, three different regimes are observed with increasing driver amplitude: 1) below threshold, localized quasiperiodic oscillations and no spreading; 2) three different regimes in time close to threshold, with almost regular oscillations initially, weak chaos and slow spreading for intermediate times and finally strong diffusion; 3) immediate spreading for strong driving. The thresholds are due to simple bifurcations, obtained analytically for a single oscillator, and numerically as turning points of the nonlinear response manifold for a full chain. Generically, the threshold is nonzero also for infinite chains.

Place, publisher, year, edition, pages
2009. Vol. 86, no 1, p. 10009-
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-18948DOI: 10.1209/0295-5075/86/10009OAI: oai:DiVA.org:liu-18948DiVA, id: diva2:222136
Available from: 2009-06-06 Created: 2009-06-05 Last updated: 2014-01-13

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Johansson, Magnus

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