2024-03-29T07:57:05Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00031038
2023-01-16T04:24:20Z
336:695:696
Novel cosmological and black hole solutions in Einstein and higher-derivative gravity in two dimensions
Nojiri, Shin'ichi
Odintsov, Sergei D.
open access
This is the Accepted Manuscript version of an article accepted for publication in [EPL (Europhysics Letters)].IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at [10.1209/0295-5075/130/10004]
“This Accepted Manuscript is available for reuse under a CC BY-NC-ND licence after the 12 month embargo period provided that all the terms of the licence are adhered to”
We consider cosmological and black hole solutions in the Einstein and higher-derivative gravity in two dimensions where the theory is formulated first in D dimensions. In the limit that D tends to 2 with simultaneous singular rescaling of the scalar curvature coupling constant as 1/(D-2), we get the novel Einstein and higher-derivative gravity. Due to non-trivial contribution of scalar curvature which is topological invariant in exactly two dimensions to gravitational equations in the two-dimensional limit one gets novel cosmological and black hole solutions. In particular, the de Sitter and radiation-dominated universe and the Schwarzschild–de Sitter and Schwarzschild–anti-de Sitter black hole solutions are obtained and their properties are discussed.
ファイル公開:2021-05-12
IOP publishing
2020-05-12
eng
journal article
AM
http://hdl.handle.net/2237/00033220
https://nagoya.repo.nii.ac.jp/records/31038
https://doi.org/10.1209/0295-5075/130/10004
1286-4854
EPL (Europhysics Letters)
130
1
10004
https://nagoya.repo.nii.ac.jp/record/31038/files/2DBHR1.pdf
application/pdf
84.1 kB
2021-05-12