Abstract

We have recently introduced a discrete model of Lorentzian quantum gravity,
given as a regularized non-perturbative state sum over simplicial Lorentzian spacetimes,
each possessing a uniqueWick rotation to Euclidean signature. We investigate
here the phase structure of the Wick-rotated path integral in three dimensions with
the aid of computer simulations. After fine-tuning the cosmological
... read more