Is de Sitter space always excluded in semiclassical f(R) gravity?

Autor:	Andrea Giusti, Roberto Casadio, Valerio Faraoni, Andrea Giugno
Přispěvatelé:	Casadio, R., Giugno, A., Giusti, A., Faraoni, V.
Rok vydání:	2019
Předmět:	High Energy Physics - Theory Physics Physics::General Physics Gravity (chemistry) Spacetime 010308 nuclear & particles physics De Sitter space 83F05 81T20 83D05 FOS: Physical sciences Semiclassical physics Astronomy and Astrophysics General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences General Relativity and Quantum Cosmology High Energy Physics::Theory High Energy Physics - Theory (hep-th) De Sitter universe 0103 physical sciences physics of the early universe f(R) gravity modified gravity cosmology of theories beyond the SM Phenomenology (particle physics) Mathematical physics
Zdroj:	Journal of Cosmology and Astroparticle Physics. 2019:005-005
ISSN:	1475-7516
DOI:	10.1088/1475-7516/2019/06/005
Popis:	It is shown that the recent corpuscular description of gravity generically excludes de Sitter spacetime in any semiclassical version of f(R) gravity. A phantom phenomenology of the cosmic dynamics is also naturally excluded. Comment: 9 pages, no figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f86638f5f5a3539e9c84b49e435bb3a8 https://doi.org/10.1088/1475-7516/2019/06/005 Zobrazit plný text záznamu