895 research outputs found
Anti-de Sitter space and black holes
Anti-de Sitter space with identified points give rise to black-hole
structures. This was first pointed out in three dimensions, and generalized to
higher dimensions by Aminneborg et al. In this paper, we analyse several
aspects of the five dimensional anti-de Sitter black hole including, its
relation to thermal anti-de Sitter space, its embedding in a Chern-Simons
supergravity theory, its global charges and holonomies, and the existence of
Killing spinors.Comment: 15 pages (twocolumn), 2 Postscript figure
The action for higher spin black holes in three dimensions
In the context of (2+1)--dimensional Chern-Simons SL(N,R)\times SL(N,R) gauge
fields and spin N black holes we compute the on-shell action and show that it
generates sensible and consistent thermodynamics. In particular, the
Chern-Simons action solves the integrability conditions recently considered in
the literature.Comment: Paper shortened and generalized. Main results unchanged. 25 pages,
Latex, no figure
Asymptotic charges in 3d gravity with torsion
We discuss some new developments in three-dimensional gravity with torsion,
based on Riemann-Cartan geometry. Using the canonical approach, we study the
structure of asymptotic symmetry, clarify its fundamental role in defining the
gravitational conserved charges, and explore the influence of the asymptotic
structure on the black hole entropy.Comment: 6 pages, LATEX file (+jpconf.cls,jpconf11.clo), Talk presented at
Constrained Dynamics and Quantum Gravity 05, Cala Gonone (Sardinia, Italy),
September 12-16, 200
Birkhoff's Theorem for Three-Dimensional AdS Gravity
All three-dimensional matter-free spacetimes with negative cosmological
constant, compatible with cyclic symmetry are identified. The only cyclic
solutions are the 2+1 (BTZ) black hole with SO(2) x R isometry, and the
self-dual Coussaert-Henneaux spacetimes, with isometry groups SO(2) x SO(2,1)
or SO(2) x SO(2).Comment: 11 pages, RevTeX4; minor typos corrected, Ref. added, accepted for
publication in Phys. Rev.
Mass Generation and Symmetry Breaking in Chern-Simons Supergravity
We argue that the quartic fermionic potential of five-dimensional
Chern-Simons supergravity induces spontaneous symmetry breaking, in a
phenomenon bearing a close connection with the Nambu and Jona-Lasinio model.Comment: 5 pages, 1 eps figure. Corrected and added reference
Asymptotic dynamics in 3D gravity with torsion
We study the nature of boundary dynamics in the teleparallel 3D gravity. The
asymptotic field equations with anti-de Sitter boundary conditions yield only
two non-trivial boundary modes, related to a conformal field theory with
classical central charge. After showing that the teleparallel gravity can be
formulated as a Chern-Simons theory, we identify dynamical structure at the
boundary as the Liouville theory.Comment: 16 pages, RevTeX, no figure
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