Hausdorff dimension of fermions on a random lattice
Mattia Varrone (Department of Applied Mathematics and Theoretical Physics, University of Cambridge, UK, Laboratory for Theoretical Fundamental Physics, EPFL, Rte de la Sorge, Lausanne, Switzerland)
; William E.V. Barker (Astrophysics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, UK, Kavli Institute for Cosmology, Madingley Road, Cambridge, UK)
Geometric properties of lattice quantum gravity in two dimensions are studied numerically via Monte Carlo on Euclidean Dynamical Triangulations. A new computational method is proposed to simulate gravity coupled with fermions, which allows the study of interacting theories on a lattice, such as non-Riemannian gravity models. This was tested on Majorana spinors, where we obtained a Hausdorff dimension , consistent with the bounds from the literature .