Kink dynamics in a novel discrete sine-Gordon system

@inproceedings{Speight1994KinkDI,
  title={Kink dynamics in a novel discrete sine-Gordon system},
  author={J M Speight},
  year={1994}
}
  • J M Speight
  • Published 1994
A spatially-discrete sine-Gordon system with some novel features is described. There is a topological or Bogomol'nyi lower bound on the energy of a kink, and an explicit static kink which saturates this bound. There is no Peierls potential barrier, and consequently the motion of a kink is simpler, especially at low speeds. At higher speeds, it radiates and slows down.