Wobbles and other kink-breather solutions of the sine-Gordon model.
We study various solutions of the sine-Gordon model in (1+1) dimensions. We use the Hirota method to construct some of them and then show that the wobble, discussed in detail in a recent paper by Kälberman, is one of such solutions. We concentrate our attention on a kink and its bound states with one or two breathers. We study their stability and some aspects of their scattering properties on potential wells and on fixed boundary conditions.
Instituto de Física de São Carlos, IFSC/USP, São Carlos, São Paulo, Brazil. laf@ifsc.usp.br
L A
LA
Ferreira
Bernard
B
Piette
Wojtek J
WJ
Zakrzewski