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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Sociedade Brasileira de Física
2005
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| Materias: | |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=46435753 |
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- Some Results on the Evolution of Primordial Black Holes P. S. Custódio J. E. Horvath Física, Astronomía y Matemáticas We briefly review some recent results related to thermodynamics of semiclassical black holes applied totheir primordial formation. Issues on the existence of an influx of ambient particles onto the PBHs, whichmay help grow them, are addressed. We revisit the integrated flux from evaporated PBHs contributing to thepresent backgrounds and show that there probe mass scales which are otherwise poorly constrained. Finally theGeneralized Second Law of Thermodynamics and the Holographic Principle are combined to show that if someform of the latter holds, strong upper bounds to the mass density of PBHs formed in the early universe may beobtained, especially for inflationary cosmological models. This method is completely independent from thosebased on the background fluxes and applies to potentially important epochs of PBH formation, resulting in quitestrong constraints to Wpbh. 2005 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46435753 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4B Vol.35