A Matrix Model for 2D Quantum Gravity defined by Causal Dynamical Triangulations

Simple item page
dc.creatorAmbjorn, J.
dc.creatorLoll, R.
dc.creatorWatabiki, Y.
dc.creatorWestra, W.
dc.creatorZohren, S.
dc.date2008-04-01
dc.date.accessioned2026-07-07T11:33:28Z
dc.date.available2026-07-07T11:33:28Z
dc.descriptionA novel continuum theory of two-dimensional quantum gravity, based on a version of Causal Dynamical Triangulations which incorporates topology change, has recently been formulated as a genuine string field theory in zero-dimensional target space (arXiv:0802.0719). Here we show that the Dyson-Schwinger equations of this string field theory are reproduced by a cubic matrix model. This matrix model also appears in the so-called Dijkgraaf-Vafa correspondence if the superpotential there is required to be renormalizable. In the spirit of this model, as well as the original large-N expansion by 't Hooft, we need no special double-scaling limit involving a fine tuning of coupling constants to obtain the continuum quantum-gravitational theory. Our result also implies a matrix model representation of the original, strictly causal quantum gravity model.
dc.description13 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0804.0252
dc.identifierhttp://arxiv.org/abs/0804.0252
dc.identifierPhys.Lett.B665:252-256,2008
dc.identifierdoi:10.1016/j.physletb.2008.06.026
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197904
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleA Matrix Model for 2D Quantum Gravity defined by Causal Dynamical Triangulations
dc.typetext

Files

Collections

arXiv