3 papers
gr-qc1999
Single-exterior black holes
Jorma Louko
We discuss quantum properties of the single-exterior, geon-type black (and white) holes that are obtained from the Kruskal spacetime and the spinless Banados-Teitelboim-Zanelli hol…
gr-qc1994
Global structure of Witten's 2+1 gravity on
Jorma Louko, Donald Marolf
We investigate the space of classical solutions to Witten's formulation of 2+1 gravity on the manifold . is connected, but neither Hausdor…
gr-qc1993
Initial conditions and unitarity in unimodular quantum cosmology
Alan Daughton, Jorma Louko, Rafael D. Sorkin
We consider quantization of the positive curvature Friedmann cosmology in the unimodular modification of Einstein's theory, in which the spacetime four-volume appears as an explici…