Gravitating topological matter in 2+1 dimensions

We study Hawking radiation from three-dimensional black holes. For this purpose the emission of charged scalar and charged fermionic particles is investigated from charged BTZ black holes, with and without rotation. We use the quantum tunneling approach incorporating WKB approximation and spacetime symmetries. Another class of black hole which is asymptotic to a Sol three-manifold has also been investigated. This procedure gives us the tunneling probability of outgoing particles, and we compute the temperature of the radiation for these black holes. We also consider the quantum tunneling of particles from black hole asymptotic to Sol geometry.-1 -

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“…For example, one can consider three-dimensional Einstein gravity with topological matter [16]. One can also discuss the EinsteinMaxwell theory.…”

Section: Charged Btz Black Holesmentioning

confidence: 99%

Quantum tunneling from three-dimensional black holes

et al. 2013

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“…This theory, developed by two of the present authors [7], minimally couples topological matter to Einstein gravity in 2+1 dimensions, in effect replacing the cosmological constant by a simple set of matter fields. We shall call this model "BCEA theory.…”

Section: Bcea Gravitymentioning

confidence: 99%

Black holes in three-dimensional topological gravity

1995

Self Cite

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We investigate the black hole solution to (2+1)-dimensional gravity coupled to topological matter, with a vanishing cosmological constant. We calculate the total energy, angular momentum and entropy of the black hole in this model and compare with results obtained in Einstein gravity. We find that the theory with topological matter reverses the identification of energy and angular momentum with the parameters in the metric, compared with general relativity, and that the entropy is determined by the circumference of the inner rather than the outer horizon. We speculate that this results from the contribution of the topological matter fields to the conserved currents. We also briefly discuss two new possible (2+1)-dimensional black holes.

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“…[5]. At the quantum level, there have been studies on quantum gravity of point particles [6], quantum cosmology and black-hole quantum mechanics [7], topologically massive gravity [4], gravitating topological matter [8], de Sitter quantum gravity [9], loop quantum gravity [10], dynamically triangulated quantum gravity [11] and many other subjects.…”

Section: Introductionmentioning

confidence: 99%

Renormalization of quantum gravity coupled with matter in three dimensions

Anselmi

2004

Nuclear Physics B

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In three spacetime dimensions, where no graviton propagates, pure gravity is known to be finite. It is natural to inquire whether finiteness survives the coupling with matter. Standard arguments ensure that there exists a subtraction scheme where no Lorentz-Chern-Simons term is generated by radiative corrections, but are not sufficiently powerful to ensure finiteness. Therefore, it is necessary to perform an explicit (two-loop) computation in a specific model. I consider quantum gravity coupled with ChernSimons U (1) gauge theory and massless fermions and show that renormalization originates four-fermion divergent vertices at the second loop order. I conclude that quantum gravity coupled with matter, as it stands, is not finite in three spacetime dimensions.

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Gravitating topological matter in 2+1 dimensions

Cited by 44 publications

References 20 publications

Quantum tunneling from three-dimensional black holes

Quantum tunneling from three-dimensional black holes

Black holes in three-dimensional topological gravity

Renormalization of quantum gravity coupled with matter in three dimensions

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