Beyond the near-horizon limit: stringy corrections to heterotic black holes
We study the rst-order in α¹ corrections to 4-charge black holes (with the Reissner-Nordstr om black hole as a particular example) beyond the near-horizon limit in the Heterotic Superstring effective action framework. The higher-curvature terms behave as delocalized sources in the equations of motio...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/715256 |
| Acceso en línea: | http://hdl.handle.net/10486/715256 https://dx.doi.org/10.1007/JHEP02(2019)192 |
| Access Level: | acceso abierto |
| Palabra clave: | Black holes in string theory superstrings and heterotic strings Física |
| Sumario: | We study the rst-order in α¹ corrections to 4-charge black holes (with the Reissner-Nordstr om black hole as a particular example) beyond the near-horizon limit in the Heterotic Superstring effective action framework. The higher-curvature terms behave as delocalized sources in the equations of motion and in the Bianchi identity of the 3-form. For some charges, this introduces a shift between their values measured at the horizon and asymptotically. Some of these corrections and their associated charge shifts, but not all of them, can be canceled using appropriate SU(2) instantons for the heterotic gauge elds. The entropy, computed using Wald's formula, is in agreement with the result obtained via microstate counting when the delocalized sources are properly taken into account |
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