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Two-Dimensional Lattice Gravity as a Spin System

Quantum gravity is studied in the path integral formulation applying the Regge calculus. Restricting the quadratic link lengths of the originally triangular lattice the path integral can be transformed to the partition function of a spin system with higher couplings on a Kagome lattice. Various measures acting as external field are considered. Extensions to matter fields and higher dimensions are discussed.

preprint1993arXivOpen access

W. Beirl H. Markum J. Riedler

hep-lat

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W. Beirl H. Markum J. Riedler

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Two-Dimensional Lattice Gravity as a Spin System

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