We continue explorations of deformed Abrikosov-Nielsen-Olesen (ANO) strings, with non-Abelian moduli on the worldsheet. In a simple model with an extra field, we find classically stable ANO and non-Abelian strings. The tension of the latter is a few percent lower than the tension of the ANO string. Then, we calculate the interpolating field configuration. Once the kink mass M k and the difference of tensions ΔT are found, we calculate the decay rate of the ANO string with a higher tension ("false vacuum") into the non-Abelian string with the lower tension ("genuine vacuum") through the "bubble" formation in the quasiclassical approximation.
Bibliographical noteFunding Information:
This work is supported in part by DOE grant DE-FG02-94ER40823 and Fondecyt Grant No. 3140122. G. Tallarita would like to thank the William I. Fine Institute for Theoretical Physics at the University of Minnesota for hospitality during the completion of this work. The work of A. Yung was supported by FTPI, University of Minnesota, by RFBR Grant No. 13-02-00042a and by Russian State Grant for Scientific Schools RSGSS-657512010.2. The Centro de Estudios Científicos (CECS) is funded by the Chilean Government through the Centers of Excellence Base Financing Program of Conicyt.
- Flux tubes and strings
- Topological defects
- Worldsheet moduli