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Inflation induced Planck-size black hole remnants as dark matter

机译:通货膨胀导致普朗克大小的黑洞残留物成为暗物质

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摘要

While there exist various candidates, the identification 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-sized BHR at the end of its evaporation. We speculate that the stability of BHR may be further protected by supersymmetry in the form of extremal black hole. If this is indeed the case and 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 the case in 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 fine-tuned. Possible observational signatures are briefly discussed.
机译:尽管存在各种候选物,但暗物质的鉴定仍未解决。最近,有人争论说,广义不确定性原理(GUP)可能会阻止黑洞完全蒸发,因此,蒸发结束时应该存在一个普朗克大小的BHR。我们推测,BHR的稳定性可以通过极对称黑洞的形式进一步受到对称性的保护。如果确实如此,并且如果在早期宇宙中可以产生足够数量的小黑洞,那么所得的BHR可能是DM的有趣候选者。我们证明了混合通胀模型就是这种情况。通过假设BHR为DM,我们的概念对混合通胀潜力施加了约束。我们表明,这种约束不是微调的。简要讨论了可能的观测特征。

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