Phase transitions and bubble nucleations for a phi^6 model in curved spacetime

Details Phase transitions and bubble nucleations for a phi^6 model in curved spacetime Phase transitions and bubble nucleations for a phi^6 model in curved spacetime

2001-02-26

arxiv.org/abs/hep-th/0102177v1

Mod.Phys.Lett. A18 (2003) 937-946

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 6 figures

Scientific paper

10.1142/S0217732303009502

Condsidering a massive self-interacting phi ^6 scalar field coupled arbitrarily to a (2+1) dimensional Bianchi type-I spacetime, we evaluate the one-loop effective potential. It is found that phi ^6 potential can be regularized in (2+1) dimensional curved spacetime. A finite expression for the energy-momentum tensor is obtained for this model. Evaluating the finite temperature effective potential, the temperature dependence of phase transitions is studied. The crucial dependence of the phase transitions on the spacetime curvature and on the coupling to gravity are also verified. We also discuss the nucleation of bubbles in a phi ^6 model. It is found that there exists an exact solution for the damped motion of the bubble in the thin wall regime.

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