Baby universes in 2d quantum gravity

Details Baby universes in 2d quantum gravity Baby universes in 2d quantum gravity

1993-03-26

arxiv.org/abs/hep-th/9303149v1

Phys.Lett. B307 (1993) 34-39

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, 7 figures (available as hard copies on request). Latex, NBI-HE-93-4

Scientific paper

10.1016/0370-2693(93)90188-N

We investigate the fractal structure of $2d$ quantum gravity, both for pure
gravity and for gravity coupled to multiple gaussian fields and for gravity
coupled to Ising spins. The roughness of the surfaces is described in terms of
baby universes and using numerical simulations we measure their distribution
which is related to the string susceptibility exponent $\g_{string}$.

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