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Quantization of AdS3 black holes in external fields: semiclassical results from pure gravity

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(2+1)-dimensional anti-de Sitter (AdS) gravity is quantized in the presence of an external scalar field. We find that the coupling between the scalar field and gravity is equivalently described by a perturbed conformal field theory at the boundary of AdS3. This allows us to perform a microscopic computation of the transition rates between black hole states due to absorption and induced emission of the scalar field. Detailed thermodynamic balance then yields Hawking radiation as spontaneous emission, and we find agreement with the semiclassical result, including greybody factors. This result also has application to four and five-dimensional black holes in supergravity.

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Articles publicats en revistes (Física de la Matèria Condensada)

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Quantization of AdS3 black holes in external fields: semiclassical results from pure gravity