New higher-order transition in causal dynamical triangulations

Abstract

We reinvestigate the recently discovered bifurcation phase transition in Causal Dynamical Triangulations (CDT) and provide further evidence that it is a higher order transition. We also investigate the impact of introducing matter in the form of massless scalar fields to CDT. We discuss the impact of scalar fields on the measured spatial volumes and fluctuation profiles in addition to analysing how the scalar fields influence the position of the bifurcation transition.

15 pages, 11 figures. Conforms with version accepted for publication in Phys. Rev. D

References in corpus (6)

• Nonperturbative Quantum Gravity
• Asymptotic safety in higher-derivative gravity
• The Classical Universes of the No-Boundary Quantum State
• The Nonperturbative Quantum de Sitter Universe
• Second- and First-Order Phase Transitions in CDT
• Evidence for Asymptotic Safety from Dimensional Reduction in Causal Dynamical Triangulations

Cited by in corpus (2)

• Dimension and Dimensional Reduction in Quantum Gravity
• Spectral Methods and Running Scales in Causal Dynamical Triangulations