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Physical Review Letters
Paper

Evidence for breather excitations in the sine-Gordon chain

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Abstract

Using a molecular-dynamics technique for the classical sine-Gordon chain, we have found that nonlinear breather modes give rise to two excitation branches. A low-frequency resonance is associated with the propagating envelope and a high-frequency peak with the internal oscillations. © 1979 The American Physical Society.

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Publication

Physical Review Letters

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