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Discrete breathers in disordered media

✍ Scribed by J.-A. Sepulchre; R.S. MacKay

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 303 KB
Volume: 113
Category: Article
ISSN: 0167-2789
DOI: 10.1016/s0167-2789(97)00288-1

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✦ Synopsis

We describe some simple physical models where discrete breathers (nonlinear localised modes in a lattice) exist together with spatial disorder. As the models are translation invariant, both spatial localisation and spatial disorder are only due to the interplay of nonlinearity and discreteness. This result is obtained as a straightforward application of a general result of existence of discrete breathers [J.-A. Sepulchre, R.S. MacKay, Localised oscillations in conservative, or dissipative networks of weakly coupled autonomous oscillators, Nonlinearity IO (1997) I-351.

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