Consistency conditions and primordial black holes in single field inflation

Kód výsledku v IS VaVaI

RIV/68378271:_____/22:00567324 - isvavai.cz

Výsledek na webu

https://doi.org/10.1103/PhysRevD.105.023524

DOI - Digital Object Identifier

10.1103/PhysRevD.105.023524

Jazyk výsledku

angličtina

Název v původním jazyce

Consistency conditions and primordial black holes in single field inflation

Popis výsledku v původním jazyce

We discuss new consistency relations for single field models of inflation capable of generating primordial black holes (PBH), and their observational implications for CMB μ-space distortions. These inflationary models include a short period of nonattractor evolution, the scale-dependent profile of curvature perturbation is characterized by a pronounced dip, followed by a rapid growth leading to a peak responsible for PBH formation. We investigate the squeezed and the collapsed limits of three- and four-point functions of curvature perturbation around the dip, showing that they satisfy consistency relations connecting their values to the total amplification of the curvature spectrum, and to the duration of the nonattractor era.

Název v anglickém jazyce

Consistency conditions and primordial black holes in single field inflation

Popis výsledku anglicky

We discuss new consistency relations for single field models of inflation capable of generating primordial black holes (PBH), and their observational implications for CMB μ-space distortions. These inflationary models include a short period of nonattractor evolution, the scale-dependent profile of curvature perturbation is characterized by a pronounced dip, followed by a rapid growth leading to a peak responsible for PBH formation. We investigate the squeezed and the collapsed limits of three- and four-point functions of curvature perturbation around the dip, showing that they satisfy consistency relations connecting their values to the total amplification of the curvature spectrum, and to the duration of the nonattractor era.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

EF15_003/0000437: Kosmologie, gravitace a temný sektor vesmíru

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

105

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

29

Strana od-do

023524

Kód UT WoS článku

000758498600007

EID výsledku v databázi Scopus

2-s2.0-85123838158