Matches in SemOpenAlex for { <https://semopenalex.org/work/W3015340981> ?p ?o ?g. }
- W3015340981 abstract "The inflationary origin of primordial black holes (PBHs) relies on a large enhancement of the power spectrum ${mathrm{ensuremath{Delta}}}_{ensuremath{zeta}}$ of the curvature fluctuation $ensuremath{zeta}$ at wavelengths much shorter than those of the cosmic microwave background anisotropies. This is typically achieved in models where $ensuremath{zeta}$ evolves without interacting significantly with additional (isocurvature) scalar degrees of freedom. However, quantum gravity inspired models are characterized by moduli spaces with highly curved geometries and a large number of scalar fields that could vigorously interact with $ensuremath{zeta}$ (as in the cosmological collider picture). Here we show that isocurvature fluctuations can mix with $ensuremath{zeta}$ inducing large enhancements of its amplitude. This occurs whenever the inflationary trajectory experiences rapid turns in the field space of the model leading to amplifications that are exponentially sensitive to the total angle swept by the turn, which induce characteristic observable signatures on ${mathrm{ensuremath{Delta}}}_{ensuremath{zeta}}$. We derive accurate analytical predictions and show that the large enhancements required for PBHs demand noncanonical kinetic terms in the action of the multifield system." @default.
- W3015340981 created "2020-04-17" @default.
- W3015340981 creator A5016351940 @default.
- W3015340981 creator A5032540558 @default.
- W3015340981 creator A5077509889 @default.
- W3015340981 date "2020-09-14" @default.
- W3015340981 modified "2023-10-13" @default.
- W3015340981 title "Seeding Primordial Black Holes in Multifield Inflation" @default.
- W3015340981 cites W1640843629 @default.
- W3015340981 cites W1971230011 @default.
- W3015340981 cites W1973861971 @default.
- W3015340981 cites W1993291303 @default.
- W3015340981 cites W1998031879 @default.
- W3015340981 cites W1998060766 @default.
- W3015340981 cites W2012869970 @default.
- W3015340981 cites W2013511301 @default.
- W3015340981 cites W2017312540 @default.
- W3015340981 cites W2025279043 @default.
- W3015340981 cites W2029115790 @default.
- W3015340981 cites W2030777840 @default.
- W3015340981 cites W2032922606 @default.
- W3015340981 cites W2036234402 @default.
- W3015340981 cites W2045009398 @default.
- W3015340981 cites W2057980978 @default.
- W3015340981 cites W2071465911 @default.
- W3015340981 cites W2072549870 @default.
- W3015340981 cites W2077034143 @default.
- W3015340981 cites W2077310398 @default.
- W3015340981 cites W2077575733 @default.
- W3015340981 cites W2077768234 @default.
- W3015340981 cites W2082497072 @default.
- W3015340981 cites W2107527689 @default.
- W3015340981 cites W2116314129 @default.
- W3015340981 cites W2134251287 @default.
- W3015340981 cites W2141106168 @default.
- W3015340981 cites W2149661567 @default.
- W3015340981 cites W2506531441 @default.
- W3015340981 cites W2571621993 @default.
- W3015340981 cites W2591485485 @default.
- W3015340981 cites W2619375469 @default.
- W3015340981 cites W2624691814 @default.
- W3015340981 cites W2684219589 @default.
- W3015340981 cites W2763487980 @default.
- W3015340981 cites W2778685324 @default.
- W3015340981 cites W2781084618 @default.
- W3015340981 cites W2787174546 @default.
- W3015340981 cites W2798615930 @default.
- W3015340981 cites W2801770278 @default.
- W3015340981 cites W2802234342 @default.
- W3015340981 cites W2808150289 @default.
- W3015340981 cites W2898458607 @default.
- W3015340981 cites W2902744094 @default.
- W3015340981 cites W2905116979 @default.
- W3015340981 cites W2910911454 @default.
- W3015340981 cites W2913325769 @default.
- W3015340981 cites W2922355218 @default.
- W3015340981 cites W2936504440 @default.
- W3015340981 cites W2937066562 @default.
- W3015340981 cites W2956406877 @default.
- W3015340981 cites W2959363404 @default.
- W3015340981 cites W2961541744 @default.
- W3015340981 cites W2964074492 @default.
- W3015340981 cites W2970830756 @default.
- W3015340981 cites W2973988606 @default.
- W3015340981 cites W2996409188 @default.
- W3015340981 cites W3098426190 @default.
- W3015340981 cites W3099590065 @default.
- W3015340981 cites W3100160199 @default.
- W3015340981 cites W3101217605 @default.
- W3015340981 cites W3101983516 @default.
- W3015340981 cites W3102124281 @default.
- W3015340981 cites W3102471445 @default.
- W3015340981 cites W3102502151 @default.
- W3015340981 cites W3102692463 @default.
- W3015340981 cites W3102974842 @default.
- W3015340981 cites W3103970076 @default.
- W3015340981 cites W3104696400 @default.
- W3015340981 cites W3105519816 @default.
- W3015340981 cites W3105560789 @default.
- W3015340981 cites W3105696247 @default.
- W3015340981 cites W3106120652 @default.
- W3015340981 cites W4242677079 @default.
- W3015340981 doi "https://doi.org/10.1103/physrevlett.125.121301" @default.
- W3015340981 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33016764" @default.
- W3015340981 hasPublicationYear "2020" @default.
- W3015340981 type Work @default.
- W3015340981 sameAs 3015340981 @default.
- W3015340981 citedByCount "89" @default.
- W3015340981 countsByYear W30153409812020 @default.
- W3015340981 countsByYear W30153409812021 @default.
- W3015340981 countsByYear W30153409812022 @default.
- W3015340981 countsByYear W30153409812023 @default.
- W3015340981 crossrefType "journal-article" @default.
- W3015340981 hasAuthorship W3015340981A5016351940 @default.
- W3015340981 hasAuthorship W3015340981A5032540558 @default.
- W3015340981 hasAuthorship W3015340981A5077509889 @default.
- W3015340981 hasBestOaLocation W30153409811 @default.
- W3015340981 hasConcept C109214941 @default.
- W3015340981 hasConcept C121332964 @default.
- W3015340981 hasConcept C182877743 @default.