Abstract
We study the question of stability of the ground state of a scalar theory which is a generalization of the theory and has some similarity to gravity with a cosmological constant. We show that the ground state of the theory at zero temperature becomes unstable above a certain critical temperature, which is evaluated in closed form at high temperature.
- Received 25 June 2008
DOI:https://doi.org/10.1103/PhysRevD.78.065030
©2008 American Physical Society