出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We extend previous work on the evolution of a Primordial Black Hole (PBH) to address the
presence of a general perfect fluid whose particular case is a dark energy component with a supernegative
equation of state as a background. The first approach for this problem is static accretion,
for which we study the competition between the radiation accretion, the Hawking evaporation
and the phantom accretion. The evaporation of PBHs is quite modified at late times by these
effects, and we investigate the impact of these results on the Generalized Second Law of thermodynamics.
We address further generalizations of this scenario, with a preliminary treatment of the
formulation of non-static accretion.
