An analytical model for the soliton-potential interaction is presented by constructing a collective coordinate

for the system. Most of the characters of the interaction are derived analytically while they are ...

Interaction of topological solitons with defects:

using a nontrivial metric

By including a potential into the flat metric, we study the interaction of sine-Gordon soliton with different potentials. We will show numerically that while the soliton-barrier system shows fully classical behaviour, the ...