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Cited by 363

The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.

On primordial black holes from an inflection point

Open access
Germani, Cristiano, Prokopec, Tomislav·2017·Physics of the Dark Universe

Abstract

Recently, it has been claimed that inflationary models with an inflection point in the scalar potential can produce a large resonance in the power spectrum of curvature perturbation. In this paper however we show that the previous analyses are incorrect. The reason is twofold: firstly, the inflaton is over-shot from a stage of standard inflation and so deviates from the slow-roll attractor before reaching the inflection. Secondly, on the (or close to) the inflection point , the ultra-slow-roll trajectory supersede the slow-roll one and thus, the slow-roll approximations used in the literature cannot be used. We then reconsider the model and provide a recipe for how to produce nevertheless a large peak in the matter power spectrum via fine-tuning of parameters.

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Metadata

Authors
Germani, C., & Prokopec, T.
Venue
Physics of the Dark Universe
Publisher
Elsevier BV
Published
2017-12
Volume
18
Pages
6-10
ISSN
2212-6864 (ISSN-L)
OpenAlex
W2624691814
Cited by
363
References
24
FWCI
14.50
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: On primordial black holes from an inflection point. https://app.cochat.ai/papers/10.1016/j.dark.2017.09.001
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Germani, C., & Prokopec, T. (2017). On primordial black holes from an inflection point. Physics of the Dark Universe. https://doi.org/10.1016/j.dark.2017.09.001

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.