T. Horiguchi, PHASES OF QUANTUM-GRAVITY BASED ON THE WHEELER-DEWITT EQUATION, Nuovo cimento della Societa italiana di fisica. B, Relativity, classical and statistical physics, 112(8), 1997, pp. 1107-1145
We discuss phases of quantum gravity based on the Wheeler-DeWitt equat
ion. It is proposed that several phases exist in quantum gravity from
the analysis of the renormalization group equation, thermodynamic anal
ysis and large fluctuations of third-quantized universe field around t
he Planck scale.