45,353 research outputs found
On the Black-Hole Conformal Field Theory Coupled to the Polyakov's String Theory. A Non Perturbative Analysis
We couple the 2D black-hole conformal field theory discovered by Witten to a
dimensional Euclidean bosonic string. We demonstrate that the resulting
planar (=zero genus) string susceptibility is real for any .Comment: 5 page
A generalized model for two dimensional quantum gravity and dynamics of random surfaces for d>1
The possible interpretations of a new continuum model for the two-dimensional
quantum gravity for (=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 -dimensional flat space-time for arbitrary . Moreover the values of
some critical exponents are computed, that are in agreement with some recent
numerical results.Comment: n. 11; Phyzz
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