{"work":{"id":"caf878b4-282a-45f1-a97a-32d3f62633f9","openalex_id":"https://openalex.org/W2754382496","doi":"10.1103/physrevd.97.023501","arxiv_id":"1709.05565","raw_key":null,"title":"Primordial black hole dark matter from single field inflation","authors":null,"authors_text":"G","year":2017,"venue":"hep-ph","abstract":"We propose a model of inflation capable of generating a population of light black holes (about $10^{-16}$ - $10^{-14}$ solar masses) that might account for a significant fraction of the dark matter in the Universe. The effective potential of the model features an approximate inflection point arising from two-loop order logarithmic corrections in well-motivated and perturbative particle physics examples. This feature decelerates the inflaton before the end of inflation, enhancing the primordial spectrum of scalar fluctuations and triggering efficient black hole production with a peaked mass distribution. At larger field values, inflation occurs thanks to a generic small coupling between the inflaton and the curvature of spacetime. We compute accurately the peak mass and abundance of the primordial black holes using the Press-Schechter and Mukhanov-Sasaki formalisms, showing that the slow-roll approximation fails to reproduce the correct results by orders of magnitude. We study as well a qualitatively similar implementation of the idea, where the approximate inflection point is due to competing terms in a generic polynomial potential. In both models, requiring a significant part of the dark matter abundance to be in the form of black holes implies a small blue scalar tilt with a sizable negative running and a tensor spectrum that may be detected by the next-generation probes of the cosmic microwave background. We also comment on previous works on the topic.","external_url":"https://arxiv.org/abs/1709.05565","cited_by_count":355,"metadata_source":"pith","metadata_fetched_at":"2026-08-05T02:28:24.338817+00:00","pith_arxiv_id":"1709.05565","created_at":"2026-05-10T11:30:19.261369+00:00","updated_at":"2026-08-05T02:28:24.338817+00:00","title_quality_ok":true,"display_title":"Primordial black hole dark matter from single field inflation","render_title":"Primordial black hole dark matter from single field inflation"},"hub":{"state":{"work_id":"caf878b4-282a-45f1-a97a-32d3f62633f9","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":16,"external_cited_by_count":355,"distinct_field_count":4,"first_pith_cited_at":"2020-02-27T05:17:54+00:00","last_pith_cited_at":"2026-07-08T16:20:44+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-08-23T18:09:56.410656+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":9}],"polarity_counts":[{"context_polarity":"background","n":7},{"context_polarity":"unclear","n":2}],"runs":{},"summary":{},"graph":{},"authors":[]}}