Skip to content

Instability of breathers in the topological discrete sine-Gordon system

J. M. Speight

hep-tharXiv:hep-th/0105074

Abstract

It is demonstrated that the breather solutions recently discovered in the weakly coupled topological discrete sine-Gordon system are spectrally unstable. This is in contrast with more conventional spatially discrete systems, whose breathers are always spectrally stable at sufficiently weak coupling.

Create a lesson