Quantum Gravity with Matter Fields in Two Dimensions
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Spin systems coupled to two-dimensional manifolds are studied as a simple example for matter fields coupled to gravity. We consider two versions of quantum Regge calculus. The Standard Regge Calculus  where the quadratic link lengths q of the simplicial manifold vary continuously and the Discrete Regge Model  where they are restricted to two possible values. These manifolds are coupled with Z2 spins .
KeywordsPartition Function Quantum Gravity Critical Exponent Spin Coupling Matter Field
- W. Beirl, P. Homolka, B. Krishnan, H. Markum, and J. Riedler, Nucl. Phys. B (Proc. Suppl.) 42 (1995) 710Google Scholar