2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/198062It 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 BHigh Energy Physics - TheoryGeneral Relativity and Quantum Cosmologytext