Kinks and domain walls
Separating in space degenerate vacua.— Quasiclassical treatment of kinks and domain walls. — Domain walls antigravitate. — Quantum corrections. — Can we observe fractional electric charges? Yes, we can, on domain walls.
5 Kinks and domain walls (at the classical level)
In this chapter we will consider a subclass of topological solitons. Let us assume that a field theory possesses a few (more than one) discrete degenerate vacuum states. A field configuration smoothly interpolating between a pair of distinct degenerate ...