Indications for Criticality at Zero Curvature in a 4d Regge Model of Euclidean Quantum Gravity
| dc.creator | Beirl, Wolfgang | |
| dc.creator | Berg, Bernd A. | |
| dc.date | 2003-08-30 | |
| dc.date.accessioned | 2026-07-07T10:48:22Z | |
| dc.date.available | 2026-07-07T10:48:22Z | |
| dc.description | We re-examine the approach to four-dimensional Euclidean quantum gravity based on the Regge calculus. A cut-off on the link lengths is introduced and consequently the gravitational coupling and the cosmological constant become independent parameters. We determine the zero curvature, $<R> =0$, line in the coupling constant plane by numerical simulations. When crossing this line we find a strong, probably first order, phase transition line with indications of a second order endpoint. Beyond the endpoint the transition through the $<R> =0$ line appears to be a crossover. Previous investigations, using the Regge or the Dynamical Triangulation approach, dealt with a limit in which the first order transition prevails. | |
| dc.description | Contribution to the lattice 2003 Tsukuba symposium | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0309002 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0309002 | |
| dc.identifier | Nucl.Phys.Proc.Suppl.129:803-805,2004 | |
| dc.identifier | doi:10.1016/S0920-5632(03)02718-X | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/183851 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Indications for Criticality at Zero Curvature in a 4d Regge Model of Euclidean Quantum Gravity | |
| dc.type | text |