Nonvacuum pseudoparticles, quantum tunneling and metastability
arXiv:hep-th/9505185
Abstract
It is shown that nonvacuum pseudoparticles can account for quantum tunneling and metastability. In particular the saddle-point nature of the pseudoparticles is demonstrated, and the evaluation of path-integrals in their neighbourhood. Finally the relation between instantons and bounces is used to derive a result conjectured by Bogomolny and Fateyev.
Latex, 16 pages, no figures