The evolution of spherically symmetric unstable scalar field configurations (``bubbles'') is examined for both symmetric and asymmetric double-well potentials. Bubbles with initial static energies E0<~Ecrit, where Ecrit is some critical value, shrink in a time scale determined by their linear dimension or ``radius.'' Bubbles with E0>~Ecrit evolve into time-dependent, localized configurations which are very long-lived compared to characteristic time scales in the models examined. The stability of these configurations is investigated and possible applications are briefly discussed.
Physical Review D
- Pub Date:
- March 1994
- Nonlinear or nonlocal theories and models;
- Particle-theory and field-theory models of the early Universe;
- High Energy Physics - Phenomenology
- 10 pages, LaTeX (uses revtex 3.0), 4 figures (postscript files of figs.1 and 2 appended starting on line 497), report DART-HEP-93/05