756 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
Charged solutions in 5d Chern-Simons supergravity
A family of solutions with mass and electric charge of five-dimensional
Chern-Simons supergravity is displayed. The action contains an extra term that
changes the value of the cosmological constant, as considered by Horava. It is
shown that the solutions approach asymptotically the Reissner-Nordstrom
spacetime. The role of the torsion tensor in providing charged solutions is
stressed.Comment: Minor changes. To appear in PRD. 8 pages, RevTeX 4, two colum
Constant Curvature Black Holes
Constant curvature black holes are constructed by identifying points in
anti-de Sitter space. In n dimensions, the resulting topology is R^{n-1} * S_1,
as opposed to the usual R^2 * S_{n-2} Schwarzschild black hole, and the
corresponding causal structure is displayed by a (n-1)-dimensional picture, as
opposed to the usual 2-dimensional Kruskal diagram. The five dimensional case,
which can be embedded in a Chern-Simons supergravity theory, is analyzed in
detail.Comment: New references added and some improvements in the presentation
introduced, 5 pages, 2 eps figures, REVTe
Black Hole Entropy in the Chern-Simons Formulation of 2+1 Gravity
We examine Carlip's derivation of the 2+1 Minkowskian black hole entropy. A
simplified derivation of the boundary action -valid for any value of the level
k- is given.Comment: 6 pages, RevTeX, minor changes. Old title "Some remarks on Carlip's
derivation of the 2+1 black hole entropy". Version to appear 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
Twisted sectors in three-dimensional gravity
Twisted sectors --solutions to the equations of motion with non-trivial
monodromies-- of three dimensional Euclidean gravity are studied. We argue that
upon quantization this new sector of the theory provides the necessary (and no
more) degrees of freedom to account for the Bekenstein-Hawking entropy.Comment: An unnecessary restriction removed. To appear in PRD. Revtex, no
figures, 20 p
Asymptotic Symmetry and the General Black Hole Solution in Ads_3 Gravity
We describe the Brown-Henneaux asymptotic symmetry of the general black holes
in the Chern-Simons gauge theory of the gauge group . We make it clear that the vector-like subgroup plays an essential role in describing the asymptotic symmetry
consistently. We find a quite general black hole solution in the
gravity theory. The solution is specified by an infinite number of conserved
quantities which constitute a family of mapping from to the gauge group.
The BTZ black hole is one of the simplest case.Comment: 19 pages, no figur
Embeddings of the Virasoro algebra and black hole entropy
We consider embeddings of the Virasoro algebra into other Virasoro algebras
with different central charges. A Virasoro algebra with central charge c
(assumed to be a positive integer) and zero mode operator L_0 can be embedded
into another Virasoro algebra with central charge one and zero mode operator c
L_0. We point out that this provides a new route to investigate the black hole
entropy problem in 2+1 dimensions.Comment: 4 pages (twocolumn), latex, no figures. Reference added. To appear in
Phys.Rev.Let
Gauge Formulation of the Spinning Black Hole in (2+1)-Dimensional Anti-de Sitter Space
We compute the group element of SO(2,2) associated with the spinning black
hole found by Ba\~nados, Teitelboim and Zanelli in (2+1)-dimensional anti-de
Sitter space-time. We show that their metric is built with SO(2,2) gauge
invariant quantities and satisfies Einstein's equations with negative
cosmological constant everywhere except at . Moreover, although the metric
is singular on the horizons, the group element is continuous and possesses a
kink there.Comment: 10 page
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