Production of Global Monopoles through the Nucleation of $O(3)$ Bubbles

Abstract

First-order cosmological phase transitions are considered in the models with an $O(3)$-symmetric scalar field, in the high temperature limit. It is shown that a global monopole can be produced at the center of a bubble when the bubble is nucleated.

8 pages, latex, figures are included; talk given at Pacific Conference on Gravitation and Cosmology, Seoul, Feb. 1-6, 1996