2024-03-29T11:34:41Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00026397
2023-01-16T04:16:58Z
336:695:696
Effects of modified gravity on the turnaround radius in cosmology
Nojiri, Shin’ichi
Odintsov, Sergei D.
Faraoni, Valerio
open access
© 2018 American Physical Society
We revisit the concept of turnaround radius in cosmology, in the context of modified gravity. While preliminary analyses were limited to scalar-tensor/F(R) gravity, we extend the definition and the study of this quantity to a much broader class of theories including also quantum R^2 gravity. The turnaround radius is computed in terms of the parameters of the theory, and it is shown that a deviation not larger than 10% of this quantity from its value in Einstein’s theory could constrain the model parameters and even rule out some current theories.
American Physical Society
2018-07-15
eng
journal article
VoR
http://hdl.handle.net/2237/00028600
https://nagoya.repo.nii.ac.jp/records/26397
https://doi.org/10.1103/PhysRevD.98.024005
2470-0010
2470-0029
Physical Review D
98
2
024005
https://nagoya.repo.nii.ac.jp/record/26397/files/PhysRevD98_024005.pdf
application/pdf
216.1 kB
2018-10-09