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Vacuum decay in a soluble model

1984; American Physical Society; Volume: 29; Issue: 6 Linguagem: Inglês

10.1103/physrevd.29.1147

1538-4500

A. Ferraz de Camargo Fo, R.C. Shellard, G. C. Marques,

Quantum Mechanics and Applications

We study a field-theoretical model where the decay rate of the false vacuum can be computed up to the first quantum corrections in both the high-temperature and zero-temperature limits. We find that the dependence of the decay rate on the height and width of the potential barrier does not follow the same simple area rule as in the quantum-mechanical case. Furthermore, its behavior is strongly model dependent.