KFU. Card publication. Primordial Black Holes from Spatially Varying Cosmological Constant Induced by Field Fluctuations in Extra Dimensions

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FEDERAL UNIVERSITY

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PRIMORDIAL BLACK HOLES FROM SPATIALLY VARYING COSMOLOGICAL CONSTANT INDUCED BY FIELD FLUCTUATIONS IN EXTRA DIMENSIONS

Form of presentation

Articles in international journals and collections

Year of publication

2024

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Authors, employees of KFU

Popov Arkadiy Aleksandrovich, author

Bibliographic description in the original language

Popov, A.A. Primordial Black Holes from Spatially Varying Cosmological Constant Induced by Field Fluctuations in Extra Dimensions / A.A. Popov, S.G. Rubin, A.S. Sakharov // Universe. - 2024. - V.10. - P. 166

Annotation

The origin and evolution of supermassive black holes (SMBHs) in our universe have sparked controversy. In this study, we explore the hypothesis that some of these black holes may have seeded from the direct collapse of dark energy domains with density significantly higher than the surrounding regions. The mechanism of the origin of such domains relies on the inflationary evolution of a scalar field acting in $D$ dimensions, which is associated with the cosmological constant in our four-dimensional spacetime manifold. Inner space quantum fluctuations of the field during inflation are responsible for the spatial variations of the dark energy density in our space. This finding holds particular significance, especially considering recent evidence from pulsar timing array observations, which supports the existence of a stochastic gravitational wave background consisting of SMBH mergers.

Keywords

primordial black hole, supermassive black hole, cosmological constant, dark energy, extra dimensions, inflation

The name of the journal

UNIVERSE

URL

https://www.mdpi.com/2218-1997/10/4/166

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

https://repository.kpfu.ru/eng/?p_id=300189&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Popov Arkadiy Aleksandrovich	ru_RU
dc.date.accessioned	2024-01-01T00:00:00Z	ru_RU
dc.date.available	2024-01-01T00:00:00Z	ru_RU
dc.date.issued	2024	ru_RU
dc.identifier.citation	Popov, A.A. Primordial Black Holes from Spatially Varying Cosmological Constant Induced by Field Fluctuations in Extra Dimensions / A.A. Popov, S.G. Rubin, A.S. Sakharov // Universe. - 2024. - V.10. - P. 166	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=300189&p_lang=2	ru_RU
dc.description.abstract	UNIVERSE	ru_RU
dc.description.abstract	The origin and evolution of supermassive black holes (SMBHs) in our universe have sparked controversy. In this study, we explore the hypothesis that some of these black holes may have seeded from the direct collapse of dark energy domains with density significantly higher than the surrounding regions. The mechanism of the origin of such domains relies on the inflationary evolution of a scalar field acting in $D$ dimensions, which is associated with the cosmological constant in our four-dimensional spacetime manifold. Inner space quantum fluctuations of the field during inflation are responsible for the spatial variations of the dark energy density in our space. This finding holds particular significance, especially considering recent evidence from pulsar timing array observations, which supports the existence of a stochastic gravitational wave background consisting of SMBH mergers.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	primordial black hole	ru_RU
dc.subject	supermassive black hole	ru_RU
dc.subject	cosmological constant	ru_RU
dc.subject	dark energy	ru_RU
dc.subject	extra dimensions	ru_RU
dc.subject	inflation	ru_RU
dc.title	Primordial Black Holes from Spatially Varying Cosmological Constant Induced by Field Fluctuations in Extra Dimensions	ru_RU
dc.type	Articles in international journals and collections	ru_RU