Constant-rate inflation: primordial black holes from conformal weight transitions

Abstract Constant-rate inflation, including ultra-slow-roll inflation as a special case, has been widely applied to the formation of primordial black holes with a significant deviation from the standard slow-roll conditions at both the growing and decaying phases of the power spectrum. We derive ana...

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Autores principales:	Kin-Wang Ng, Yi-Peng Wu
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Cosmology of Theories beyond the SM Space-Time Symmetries Conformal Field Theory Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/9a34b2f2ba4642b1a89dd615ea89ceeb
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spelling	oai:doaj.org-article:9a34b2f2ba4642b1a89dd615ea89ceeb2021-11-14T12:40:29ZConstant-rate inflation: primordial black holes from conformal weight transitions10.1007/JHEP11(2021)0761029-8479https://doaj.org/article/9a34b2f2ba4642b1a89dd615ea89ceeb2021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)076https://doaj.org/toc/1029-8479Abstract Constant-rate inflation, including ultra-slow-roll inflation as a special case, has been widely applied to the formation of primordial black holes with a significant deviation from the standard slow-roll conditions at both the growing and decaying phases of the power spectrum. We derive analytic solutions for the curvature perturbations with respect to the late-time scaling dimensions (conformal weights) constrained by the dilatation symmetry of the de Sitter background and show that the continuity of conformal weights across different rolling phases is protected by the adiabatic condition of the inflaton perturbation. The temporal excitation of subleading states (with the next-to-lowest conformal weights), recorded as the “steepest growth” of the power spectrum, is triggered by the entropy production in the transition from the slow-roll to the constant-rate phases.Kin-Wang NgYi-Peng WuSpringerOpenarticleCosmology of Theories beyond the SMSpace-Time SymmetriesConformal Field TheoryNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-26 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Cosmology of Theories beyond the SM Space-Time Symmetries Conformal Field Theory Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Cosmology of Theories beyond the SM Space-Time Symmetries Conformal Field Theory Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Kin-Wang Ng Yi-Peng Wu Constant-rate inflation: primordial black holes from conformal weight transitions
description	Abstract Constant-rate inflation, including ultra-slow-roll inflation as a special case, has been widely applied to the formation of primordial black holes with a significant deviation from the standard slow-roll conditions at both the growing and decaying phases of the power spectrum. We derive analytic solutions for the curvature perturbations with respect to the late-time scaling dimensions (conformal weights) constrained by the dilatation symmetry of the de Sitter background and show that the continuity of conformal weights across different rolling phases is protected by the adiabatic condition of the inflaton perturbation. The temporal excitation of subleading states (with the next-to-lowest conformal weights), recorded as the “steepest growth” of the power spectrum, is triggered by the entropy production in the transition from the slow-roll to the constant-rate phases.
format	article
author	Kin-Wang Ng Yi-Peng Wu
author_facet	Kin-Wang Ng Yi-Peng Wu
author_sort	Kin-Wang Ng
title	Constant-rate inflation: primordial black holes from conformal weight transitions
title_short	Constant-rate inflation: primordial black holes from conformal weight transitions
title_full	Constant-rate inflation: primordial black holes from conformal weight transitions
title_fullStr	Constant-rate inflation: primordial black holes from conformal weight transitions
title_full_unstemmed	Constant-rate inflation: primordial black holes from conformal weight transitions
title_sort	constant-rate inflation: primordial black holes from conformal weight transitions
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/9a34b2f2ba4642b1a89dd615ea89ceeb
work_keys_str_mv	AT kinwangng constantrateinflationprimordialblackholesfromconformalweighttransitions AT yipengwu constantrateinflationprimordialblackholesfromconformalweighttransitions
_version_	1718429120159809536

Constant-rate inflation: primordial black holes from conformal weight transitions

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