Measure dependence of 2D simplicial quantum gravity

Details Measure dependence of 2D simplicial quantum gravity Measure dependence of 2D simplicial quantum gravity

1995-01-06

arxiv.org/abs/hep-lat/9501005v1

Nucl.Phys.Proc.Suppl. 42 (1995) 722-724

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, self unpacking uuencoded PostScript file, contribution to LATTICE94

Scientific paper

10.1016/0920-5632(95)00362-D

We study pure 2D Euclidean quantum gravity with $R^2$ interaction on spherical lattices, employing Regge's formulation. We attempt to measure the string susceptibility exponent $\gamma_{\rm str}$ by using a finite-size scaling Ansatz in the expectation value of $R^2$. To check on effects of the path integral measure we investigate two scale invariant measures, the "computer" measure $dl/l$ and the Misner measure $dl/\sqrt A$.

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