A GAUSS PROCEDURE FOR THE CONSTRUCTION OF LOCALIZED SOLITONS IN ANHARMONIC CHAINS

Authors
DUSI R WAGNER M
Citation
R. Dusi et M. Wagner, A GAUSS PROCEDURE FOR THE CONSTRUCTION OF LOCALIZED SOLITONS IN ANHARMONIC CHAINS, Physica. B, Condensed matter, 220, 1996, pp. 393-395
Citations number
9
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
220
Year of publication
1996
Pages
393 - 395
Database
ISI
SICI code
0921-4526(1996)220:<393:AGPFTC>2.0.ZU;2-9
Abstract
Recently, in the Fermi-Pasta-Ulam chain stable self-localized solitons (SLS) have been found. In the present investigation a construction pr ocedure for SLS solutions is presented. It is based on two ingredients : (a) the exploitation of the harmonic wing property and (b) a Gaussia n step-by-step optimization starting from the wing. The procedure allo ws for highly accurate approximate solutions. The temporal stability o f the solutions is verified.