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Non-perturbative 2d quantum gravity and hamiltonians unbounded from below

We show how the stochastic stabilization provides both the weak coupling genus expansion and a strong coupling expansion of 2d quantum gravity. The double scaling limit is described by a hamiltonian which is unbounded from below, but which has a discrete spectrum.

preprint1992arXivOpen access
J. AmbjornC. F. Kristjansen
hep-th
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Open access2 authors1 topic
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J. AmbjornC. F. Kristjansen

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