Planck-Size Black Hole Remnants as Dark Matter.

Chen, P.

Technical Information Center Oak Ridge Tennessee

关键词: Black holes;    Universe;    Evaporation;    Nonluminous matter;    Uncertainty principle;   

RP-ID  :  DE2004833054

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

While there exist various candidates, the nature of dark matter remains unresolved. Recently it was argued that the generalized uncertainty principle (GUP) may prevent a black hole from evaporating completely, and as a result there should exist a Planck-size black hole remnant (BHR) at the end of its evaporation. If a sufficient amount of small black holes can be produced in the early universe, then the resultant BHRs can be an interesting candidate for DM. We demonstrate that this is indeed the case for the hybrid inflation model. By assuming BHR as DM, our notion imposes a constraint on the hybrid inflation potential. We show that such a constraint is not so fine-tuned. Possible observational signatures are briefly discussed.