238 citations · 849 across the 20 of their papers we have counts for
21 papers
On Modular Invariance and 3D Gravitational Instantons
T. Brotz, M. Ortiz, A. Ritz
We study the modular transformation properties of Euclidean solutions of 3D gravity whose asymptotic geometry has the topology of a torus. These solutions represent saddle points o…
Quantum three-dimensional de Sitter space
Maximo Banados, Thorsten Brotz, Miguel Ortiz
We compute the canonical partition function of 2+1 dimensional de Sitter space using the Euclidean Chern-Simons formulation of 3d gravity with a positive cosmol…
The central charge in three dimensional anti-de Sitter space
M. Banados, M. Ortiz
This paper collects the various ways of computing the central charge arising in 3d asymptotically anti-de Sitter spaces, in the Chern-Simons formulation. Their similariti…
Anti-de Sitter/CFT Correspondence in Three-Dimensional Supergravity
Maximo Banados, Karin Bautier, Olivier Coussaert +2
Anti-de Sitter supergravity models are considered in three dimensions. Precise asymptotic conditions involving a chiral projection are given on the Rarita-Schwinger fields. Togethe…
Boundary dynamics and the statistical mechanics of the 2+1 dimensional black hole
M. Banados, T. Brotz, M. Ortiz
We calculate the density of states of the 2+1 dimensional BTZ black hole in the micro- and grand-canonical ensembles. Our starting point is the relation between 2+1 dimensional qua…
Boundary fields and renormalization group flow in the two-matrix model
Sean Carroll, Miguel Ortiz, Washington Taylor
We analyze the Ising model on a random surface with a boundary magnetic field using matrix model techniques. We are able to exactly calculate the disk amplitude, boundary magnetiza…