Abstract
We consider a sine-Gordon system, driven by an ac parametric force in the presence of loss. It is demonstrated that a breather can be maintained in a steady state at half of the external frequency. In the small-amplitude limit the effect is described by an effective nonlinear Schrodinger equation. For an arbitrary frequency of the applied field the threshold field for the breather stabilization is determined by a perturbation method and it is compared to direct numerical simulations. We also analyze the variation of the breather parameters in the stationary regime and calculate the frequency of such a modulation for a general type of driving force.
Original language | English |
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Journal | Physical Review B |
Volume | 47 |
Issue number | 9 |
Pages (from-to) | 5013-5021 |
ISSN | 2469-9950 |
DOIs | |
Publication status | Published - 1993 |
Bibliographical note
Copyright (1993) by the American Physical Society.Keywords
- CHAOS
- FIELD
- PERTURBATIONS
- AREA JOSEPHSON-JUNCTIONS
- EXCITATIONS
- SOLITONS