4 papers
Baby universes in 2d quantum gravity
J. Ambjorn, S. Jain, G. Thorleifsson
We investigate the fractal structure of quantum gravity, both for pure gravity and for gravity coupled to multiple gaussian fields and for gravity coupled to Ising spins. The…
Observing 4D Baby Universes in Quantum Gravity
J. Ambjorn, S. Jain, J. Jurkiewicz +1
We measure the fractal structure of four dimensional simplicial quantum gravity by identifying so-called baby universes. This allows an easy determination of the critical exponent…
Symmetry Breaking in the Double-Well Hermitian Matrix Models
Richard C. Brower, Nevidita Deo, Sanjay Jain +1
We study symmetry breaking in symmetric large matrix models. In the planar approximation for both the symmetric double-well model and the symmetric Penner model, we…
World-Sheet Geometry and Baby Universes in 2-D Quantum Gravity
Sanjay Jain, Samir D. Mathur
We show that the surface roughness for matter theories coupled to quantum gravity is described by a self-similar structure of baby universes. There exist baby universes…