Phonon emission from a discrete sine-Gordon breather

Citation
Sv. Dmitriev et al., Phonon emission from a discrete sine-Gordon breather, COMP MAT SC, 18(3-4), 2000, pp. 303-307
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
COMPUTATIONAL MATERIALS SCIENCE
ISSN journal
09270256 → ACNP
Volume
18
Issue
3-4
Year of publication
2000
Pages
303 - 307
Database
ISI
SICI code
0927-0256(200009)18:3-4<303:PEFADS>2.0.ZU;2-T
Abstract
Phonon emission from a large-amplitude discrete sine-Gordon breather was st udied numerically for a small degree of discreteness. In contrast to the ca se of highly discrete system investigated by Boesch and Peyrard (Phys. Rev. B 43 (1991) 8491), it was found that the resonance between the breather's oscillation and the phonons of the lower phonon band edge (kappa = 0) takes place for a small degree of discreteness. (C) 2000 Elsevier Science B.V. A ll rights reserved.