Soliton Stability in a Generalized Sine-Gordon Potential
arXiv:0709.2822 · doi:10.1023/B:IJTP.0000049020.06344.54
Abstract
We study stability of a generalized sine-Gordon model with two coupled scalar fields in two dimensions. Topological soliton solutions are found from the first-order equations that solve the equations of motion. The perturbation equations can be cast in terms of a Schrodinger-like operators for fluctuations and their spectra are calculated.