Baby Universes Revisited

Abstract

The behaviour of baby universes has been an important ingredient in understanding and quantifying non-critical string theory or, equivalently, models of two-dimensional Euclidean quantum gravity coupled to matter. Within a regularized description based on dynamical triangulations, we amend an earlier conjecture by Jain and Mathur on the scaling behaviour of genus-$g$ surfaces containing particular baby universe `necks', and perform a nontrivial numerical check on our improved conjecture.

10 pages, 1 figure

References in corpus (2)

• A String Field Theory based on Causal Dynamical Triangulations
• A new continuum limit of matrix models

Cited by in corpus (9)

• Geodesic distances in Liouville quantum gravity
• Roaming moduli space using dynamical triangulations
• Pseudo-Cartesian coordinates in a model of Causal Dynamical Triangulations
• The toroidal Hausdorff dimension of 2d Euclidean quantum gravity
• Spontaneous Symmetry Breaking and Phase Coexistence in Two-Color Networks
• The spectral dimension in 2D CDT gravity coupled to scalar fields
• Semi-classical Dynamical Triangulations
• Gas of baby universes in JT gravity and matrix models
• Two-Dimensional Quantum Geometry