Recent progress in the theory of random surfaces and simplicial quantum gravity
arXiv:hep-lat/9412006 · doi:10.1016/0920-5632(95)00181-8
Abstract
Some of the recent developments in the theory of random surfaces and simplicial quantum gravity is reviewed. For 2d quantum gravity this includes the failure of Regge calculus, our improved understanding of the regime, some surprises for q-state Potts models with , attempts to use renormalization group techniques, new critical behavior of random surface models with extrinsic curvature and improved algorithms. For simplicial quantum gravity in higher dimensions it includes a discussion of the exponential entropy bound needed for the models to be well defined, the question of ``computational ergodicity'' and the question of how to extract continuum behavior from the lattice simulations.
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