62 citations · 144 across the 3 of their papers we have counts for
3 papers
hep-th1998★ 52 cited
Euclidean and Lorentzian Quantum Gravity - Lessons from Two Dimensions
J. Ambjorn, J. L. Nielsen, J. Rolf +1
No theory of four-dimensional quantum gravity exists as yet. In this situation the two-dimensional theory, which can be analyzed by conventional field-theoretical methods, can serv…
hep-th1998★ 62 cited
The Spectral Dimension of 2D Quantum Gravity
J. Ambjorn, D. Boulatov, J. L. Nielsen +2
We show that the spectral dimension d_s of two-dimensional quantum gravity coupled to Gaussian fields is two for all values of the central charge c <= 1. The same arguments provide…
gr-qc1997★ 30 cited
Spikes in Quantum Regge Calculus
J. Ambjorn, J. Nielsen, J. Rolf +1
We demonstrate by explicit calculation of the DeWitt-like measure in two-dimensional quantum Regge gravity that it is highly non-local and that the average values of link lengths $…