Instantons in the Quantum Framework of 2D Gravity

Details Instantons in the Quantum Framework of 2D Gravity Instantons in the Quantum Framework of 2D Gravity

1991-10-18

arxiv.org/abs/hep-th/9110051v2

Nucl. Phys. Proc. Suppl. A25 (1992) 195

Physics

High Energy Physics

High Energy Physics - Theory

8 pages

Scientific paper

We analyze the non--perturbative features of 2D quantum gravity defined by stochastic regularization of the unstable matrix model showing, first, that the WKB approximation of the well-defined quantum Fokker-Planck hamiltonian corresponds to the semiclassical eigenvalue density of the former. The double scaled potential exhibits an instanton--like behaviour, which is universal and scales, but whose interpretation in terms of pure gravity is still open.

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