A generalized model for two dimensional quantum gravity and dynamics of random surfaces for d>1

Abstract

The possible interpretations of a new continuum model for the two-dimensional quantum gravity for $d>1$ ($d$=matter central charge), obtained by carefully treating both diffeomorphism and Weyl symmetries, are discussed. In particular we note that an effective field theory is achieved in low energy (large area) expansion, that may represent smooth self-avoiding random surfaces embedded in a $d$-dimensional flat space-time for arbitrary $d$. Moreover the values of some critical exponents are computed, that are in agreement with some recent numerical results.