NUMERICAL STUDY OF A TWO-POINT CORRELATION FUNCTION AND LIOUVILLE FIELD PROPERTIES IN TWO-DIMENSIONAL QUANTUM GRAVITY

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Abstract
Two-point Green’s function is measured on the manifolds of a 2-dimensional quantum gravity. The recursive sampling technique is used to generate the triangulations, lattice sizes being up to hundred thousand triangles. The grid Laplacian was inverted by means of the algebraic multi-grid solver. The free field model of the Quantum Gravity assumes the Gaussian behavior of Liouville field and curvature. We measured histograms as well as six momenta of these fields. Our results support the Gaussian assumption.

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