Spontaneous emission from excited quantum kinks

Authors:
Open Access
Publisher website
Google Scholar
Abstract
Many kink solutions enjoy internal excitations, called shape modes. In some 1+1d scalar models, such as the ϕ4 double-well model, when a kink’s shape mode is excited twice it may decay to a ground state kink plus a meson. We analytically calculate the decay rates of both the twice-excited shape mode and also a coherent state corresponding to the classically excited shape mode. In the case of the ϕ4 model, we find that the latter agrees with the classical result of Manton and Merabet.

This publication has 26 references indexed in Scilit: