Publication:
Inhomogeneous compact extra dimensions and de Sitter cosmology

Файлы
W3094207817.pdf(878 KB)
Дата
2020
Авторы
Popov, A. A.
Bronnikov, K. A.
Rubin, S. G.
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Научные группы
Организационные подразделения
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Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Аннотация
© 2020, The Author(s).In the framework of multidimensional f(R) gravity, we study the possible metrics of compact extra dimensions assuming that our 4D space has the de Sitter metric. Manifolds described by such metrics could be formed at the inflationary and even higher energy scales. It is shown that in the presence of a scalar field, it is possible to obtain a variety of inhomogeneous metrics in the extra factor space M2. Each of these metrics leads to a certain value of the 4D cosmological constant Λ4, and in particular, it is possible to obtain Λ4= 0 , as is confirmed by numerically obtained solutions. A nontrivial scalar field distribution in the extra dimensions is an important feature of this family of metrics. The obtained solutions are shown to be stable under extra-dimensional perturbations.
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Цитирование
Popov, A. A. Inhomogeneous compact extra dimensions and de Sitter cosmology / Popov, A.A., Bronnikov, K.A., Rubin, S.G. // European Physical Journal C. - 2020. - 80. - № 10. - 10.1140/epjc/s10052-020-08547-x
URI
https://www.doi.org/10.1140/epjc/s10052-020-08547-x
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85093083129&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000586402900002
 https://openrepository.mephi.ru/handle/123456789/22490
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