Primordial Black Holes from Volkov–Akulov–Starobinsky Supergravity; Fortschritte der Physik; Vol. 71, iss. 6-7

Primordial Black Holes from Volkov–Akulov–Starobinsky Supergravity; Fortschritte der Physik; Vol. 71, iss. 6-7

Bibliographic Details
Parent link:Fortschritte der Physik.— .— Washington: John Wiley and Sons Ltd.
Vol. 71, iss. 6-7.— 2023.— Article number 2300039, 10 p.
Main Author: Aldabergenov Ye. Yermek
Other Authors: Ketov S. V. Sergey Vladimirovich
Summary:Title screen
We study the formation of primordial black holes (PBH) in the Starobinsky supergravity coupled to the nilpotent superfield describing Volkov–Akulov goldstino. By using the no-scale Kähler potential and a polynomial superpotential, we find that under certain conditions our model can describe effectively single-field inflation with the ultra-slow-roll phase that appears near a critical (near-inflection) point of the scalar potential. This can lead to the formation of PBH as part of (or whole) dark matter, while keeping the inflationary spectral tilt and the tensor-to-scalar ratio in good agreement with the current cosmic microwave background (CMB) bounds. After inflation, supersymmetry is spontaneously broken at the inflationary scale with the vanishing cosmological constant
Текстовый файл
Language:English
Published: 2023
Subjects:
электронный ресурс
труды учёных ТПУ
Online Access:https://doi.org/10.1002/prop.202300039
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=679930

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