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pro vyhledávání: '"nonlocal de Sitter gravity"'
In this paper, we briefly review highlights of nonlocal de Sitter gravity based on the nonlocal term $ \sqrt{R - 2\Lambda}\ \mathcal{F}(\Box)\ \sqrt{R - 2\Lambda }$ in the Einstein-Hilbert action without matter sector. This nonlocal de Sitter gravity
Externí odkaz:
http://arxiv.org/abs/2312.16673
Autor:
Dimitrijevic, Ivan
It was shown recently that a very simple nonlocal de Sitter gravity model contains exact vacuum cosmological solution which mimics dark energy and dark matter in flat space. Some other interesting solutions have been also found. In this paper we proc
Externí odkaz:
http://arxiv.org/abs/2307.00621
Earlier constructed a simple nonlocal de Sitter gravity model has a cosmological solution in a very good agreement with astronomical observations. In this paper, we continue the investigation of the nonlocal de Sitter model of gravity, focusing on fi
Externí odkaz:
http://arxiv.org/abs/2212.13896
This paper is devoted to a simple nonlocal de Sitter gravity model and its exact vacuum cosmological solutions. In the Einstein-Hilbert action with $\Lambda$ term, we introduce nonlocality by the following way: $R - 2 \Lambda = \sqrt{R-2\Lambda}\ \sq
Externí odkaz:
http://arxiv.org/abs/2206.13515
Akademický článek
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Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-28 (2022)
Abstract This paper is devoted to a simple nonlocal de Sitter gravity model and its exact vacuum cosmological solutions. In the Einstein-Hilbert action with Λ term, we introduce nonlocality by the following way: R − 2 Λ = R − 2 Λ R − 2 Λ
Externí odkaz:
https://doaj.org/article/455567737ec747e28cd9afc0454114b7
Akademický článek
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Autor:
Dimitrijevic, Ivan1 (AUTHOR) ivand@matf.bg.ac.rs, Dragovich, Branko2,3,4 (AUTHOR) dragovich@ipb.ac.rs, Rakic, Zoran1 (AUTHOR) zrakic@matf.bg.ac.rs, Stankovic, Jelena5 (AUTHOR) jelena.grujic@uf.bg.ac.rs
Publikováno v:
Symmetry (20738994). May2024, Vol. 16 Issue 5, p544. 14p.
Publikováno v:
Symmetry, Vol 16, Iss 5, p 544 (2024)
It is already known that a simple nonlocal de Sitter gravity model, which we denote as dS gravity, contains an exact vacuum cosmological solution that mimics dark energy and dark matter and is in very good agreement with the standard model of cosmolo
Externí odkaz:
https://doaj.org/article/c27042e92cec42c09a522dd7f0c68338
Autor:
Dragovich, Branko
Publikováno v:
International Journal of Geometric Methods in Modern Physics; Sep2024, Vol. 21 Issue 10, p1-18, 18p