Instabilities in Thermal Gravity with a Cosmological Constant
arXiv:0806.1651 · doi:10.1016/j.physletb.2008.06.009
Abstract
It is shown that in quantum gravity at finite temperature, the effective potential evaluated in the tadpole approximation can have a local minimum below a certain critical temperature. However, when the leading higher order thermal loop corrections are included, one finds that no static solution exists at high temperature.
3 pages. To be published in Physics Letters B