KFU. Card publication. Two-Field Model of Gravitational-Scalar Instability and Formation of Supermassive Black Holes in the Early Universe

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FEDERAL UNIVERSITY

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TWO-FIELD MODEL OF GRAVITATIONAL-SCALAR INSTABILITY AND FORMATION OF SUPERMASSIVE BLACK HOLES IN THE EARLY UNIVERSE

Form of presentation

Articles in international journals and collections

Year of publication

2023

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Authors, employees of KFU

Ignatev Yuriy Gennadievich, author

Bibliographic description in the original language

Yu. G. Ignat'ev, Two-Field Model of Gravitational-Scalar Instability and Formation of Supermassive Black Holes in the Early Universe // Gravitation and Cosmology, 2023, Vol. 29, No. 2, pp. 163–176.

Annotation

Based on the previously formulated mathematical model of a statistical system with scalar interaction of fermions and the theory of gravitational-scalar instability of a cosmological model based on a two-component statistical system of scalarly charged degenerate fermions, a numerical model of the cosmological evolution of gravitational-scalar perturbations in the presence of classical and phantom scalar fields is constructed and studied. The gravitational-scalar instability at early stages of expansion arises in the model under study at sufficiently large scalar charges, and the instability develops near unstable points of the vacuum doublet. Short-wave perturbations of the free phantom field turn out to be stable at stable singular points of the vacuum doublet. It is shown that for sufficiently large scalar charges, mass perturbations can grow to the values of masses black hole seeds (BHS).

Keywords

gravitation, cosmology, black holes, scalar-gravitation unstability, Higgs scalar fields, two-fields model, scalar charged fermions

The name of the journal

Gravitation and Cosmology

URL

https://link.springer.com/article/10.1134/S0202289323020056

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=279183&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Ignatev Yuriy Gennadievich	ru_RU
dc.date.accessioned	2023-01-01T00:00:00Z	ru_RU
dc.date.available	2023-01-01T00:00:00Z	ru_RU
dc.date.issued	2023	ru_RU
dc.identifier.citation	Yu. G. Ignat'ev, Two-Field Model of Gravitational-Scalar Instability and Formation of Supermassive Black Holes in the Early Universe // Gravitation and Cosmology, 2023, Vol. 29, No. 2, pp. 163–176.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=279183&p_lang=2	ru_RU
dc.description.abstract	Gravitation and Cosmology	ru_RU
dc.description.abstract	Based on the previously formulated mathematical model of a statistical system with scalar interaction of fermions and the theory of gravitational-scalar instability of a cosmological model based on a two-component statistical system of scalarly charged degenerate fermions, a numerical model of the cosmological evolution of gravitational-scalar perturbations in the presence of classical and phantom scalar fields is constructed and studied. The gravitational-scalar instability at early stages of expansion arises in the model under study at sufficiently large scalar charges, and the instability develops near unstable points of the vacuum doublet. Short-wave perturbations of the free phantom field turn out to be stable at stable singular points of the vacuum doublet. It is shown that for sufficiently large scalar charges, mass perturbations can grow to the values of masses black hole seeds (BHS).	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	gravitation	ru_RU
dc.subject	cosmology	ru_RU
dc.subject	black holes	ru_RU
dc.subject	scalar-gravitation unstability	ru_RU
dc.subject	Higgs scalar fields	ru_RU
dc.subject	two-fields model	ru_RU
dc.subject	scalar charged fermions	ru_RU
dc.title	Two-Field Model of Gravitational-Scalar Instability and Formation of Supermassive Black Holes in the Early Universe	ru_RU
dc.type	Articles in international journals and collections	ru_RU