Recently a block spin renormalization group approach was proposed for the dynamical triangulation formulation of two-dimensional quantum gravity. We use this approach to examine non-perturbatively a particular class of higher derivative actions for pure gravity.
Catterall, Simon; Renken, Ray L.; and Kogut, John B., "Non-Perturbative Renormalization Group Flows in Two-Dimensional Quantum Gravity" (1994). Physics. 493.
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