English

A continuum approach to 2D-Quantum Gravity for c$>$1

High Energy Physics - Theory 2007-05-23 v1

Abstract

Two dimensional induced quantum gravity with matter central charge c>1c>1 is studied taking a careful consideration of both diffeomorphism and Weyl symmetries . It is shown that, for the gauge fixing condition R(g)R(g) (scalar curvature)=constconst, one obtains a modification of the David-Distler-Kawai version of KPZ scaling. We obtain a class of models with the real string tension for all values c>1c>1. They contain an indeterminate parameter which is, however, strongly constrained by the requirement of non triviality of such a model. The possible physical significance of the new model is discussed. In particular we note that it describes smooth surfaces imbedded in dd-dimensional flat space time for arbitrary dd, consistently with recent numerical result for d=3d=3.

Keywords

Cite

@article{arxiv.hep-th/9307105,
  title  = {A continuum approach to 2D-Quantum Gravity for c$>$1},
  author = {M. Martellini and M. Spreafico and K. Yoshida},
  journal= {arXiv preprint arXiv:hep-th/9307105},
  year   = {2007}
}

Comments

36 pages, phyzzx.tex

R2 v1 2026-07-22T15:46:49.727Z