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Dark energy and doubly coupled bigravity

Abstract:

We analyse the late time cosmology and the gravitational properties of doubly coupled bigravity in the constrained vielbein formalism (equivalent to the metric formalism) when the mass of the massive graviton is of the order of the present Hubble rate. We focus on one of the two branches of background cosmology where the ratio between the scale factors of the two metrics is algebraically determined. The Universe evolves from a matter dominated epoch to a dark energy dominated era where the eq...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1088/1361-6382/aa6856

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Role:
Author
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Funding agency for:
Davis, A
Grant:
ST/L000385/1
More from this funder
Funding agency for:
Noller, J
Publisher:
IOP Publishing Publisher's website
Journal:
Classical and Quantum Gravity Journal website
Volume:
34
Issue:
9
Pages:
095014
Publication date:
2017-03-22
Acceptance date:
2017-03-22
DOI:
EISSN:
1361-6382
ISSN:
0264-9381
Source identifiers:
686665
Keywords:
Pubs id:
pubs:686665
UUID:
uuid:050cd98b-8312-4418-bd6e-9ddf10564867
Local pid:
pubs:686665
Deposit date:
2017-03-22

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