Time dependent action in ${\varphi }^6$ potential

Abstract

The false vacuum decay in field theory from a coherently oscillating initial state is studied for ${\varphi }^6$ potential. An oscillating bubble solution is obtained. The instantaneous bubble nucleation rate is calculated.

Comments: 15 pages, Accepted for publication in Communications in Theoretical Physics. arXiv admin note: text overlap with arXiv:hep-th/9604151