DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dimitrijevic, I. | en |
dc.contributor.author | Dragovich, B. | en |
dc.contributor.author | Koshelev, A. S. | en |
dc.contributor.author | Rakic, Z. | en |
dc.contributor.author | Stankovic, J. | en |
dc.date.accessioned | 2020-12-11T13:04:43Z | - |
dc.date.available | 2020-12-11T13:04:43Z | - |
dc.date.issued | 2019-10-10 | en |
dc.identifier.issn | 03702693 | en |
dc.identifier.uri | http://researchrepository.mi.sanu.ac.rs/handle/123456789/4436 | - |
dc.description.abstract | © 2019 The Authors In this paper we consider modification of general relativity extending R−2Λ by nonlocal term of the form R−2ΛF(□)R−2Λ, where F(□) is an analytic function of the d'Alembert operator □. We have found some exact cosmological solutions of the corresponding equations of motion without matter and with Λ≠0. One of these solutions is a(t)=At [Formula presented] e [Formula presented] t2, which imitates properties similar to an interplay of the dark matter and the dark energy. For this solution we calculated some cosmological parameters which are in a good agreement with observations. This nonlocal gravity model has not the Minkowski space solution. We also found several conditions which function F(□) has to satisfy. | en |
dc.relation.ispartof | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | en |
dc.title | Cosmological solutions of a nonlocal square root gravity | en |
dc.type | Article | en |
dc.identifier.doi | 10.1016/j.physletb.2019.134848 | en |
dc.identifier.scopus | 2-s2.0-85070591496 | en |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85070591496 | en |
dc.contributor.orcid | #NODATA# | en |
dc.contributor.orcid | #NODATA# | en |
dc.contributor.orcid | #NODATA# | en |
dc.contributor.orcid | #NODATA# | en |
dc.contributor.orcid | #NODATA# | en |
dc.relation.volume | 797 | en |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.openairetype | Article | - |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
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