Journal article
Comparison of Einstein-Boltzmann solvers for testing general relativity
- Abstract:
- We compare Einstein-Boltzmann solvers that include modifications to General Relativity and find that, for a wide range of models and parameters, they agree to a high level of precision. We look at three general purpose codes that primarily model general scalar-tensor theories, three codes that model Jordan-Brans-Dicke (JBD) gravity, a code that models f(R) gravity, a code that models covariant Galileons, a code that models Ho\v{r}ava-Lifschitz gravity and two codes that model non-local models of gravity. Comparing predictions of the angular power spectrum of the cosmic microwave background and the power spectrum of dark matter for a suite of different models, we find agreement at the sub-percent level. This means that this suite of Einstein-Boltzmann solvers is now sufficiently accurate for precision constraints on cosmological and gravitational parameters.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Accepted manuscript, pdf, 3.4MB, Terms of use)
-
- Publisher copy:
- 10.1103/PhysRevD.97.023520
Authors
+ Science and Technologies Facilities Council
More from this funder
- Funding agency for:
- Bellini, E
- Calabrese, E
- Ferreira, P
- Grant:
- 693024
- 693024
+ Beecroft Trust
More from this funder
- Funding agency for:
- Bellini, E
- Ferreira, P
- Grant:
- 693024
- 693024
+ European Research Council
More from this funder
- Funding agency for:
- Bellini, E
- Ferreira, P
- Grant:
- 693024
- 693024
- Publisher:
- American Physical Society
- Journal:
- Physical Review D More from this journal
- Volume:
- 97
- Issue:
- 2
- Pages:
- 1-29
- Publication date:
- 2018-01-22
- Acceptance date:
- 2017-12-08
- DOI:
- EISSN:
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2470-0029
- ISSN:
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2470-0010
- Keywords:
- Pubs id:
-
pubs:734637
- UUID:
-
uuid:a5e1556a-8cec-4469-aea5-72d932009f7f
- Local pid:
-
pubs:734637
- Source identifiers:
-
734637
- Deposit date:
-
2017-12-22
Terms of use
- Copyright holder:
- © 2018 American Physical Society
- Copyright date:
- 2018
- Notes:
- This is the author accepted manuscript following peer review version of the article. The final version is available online from American Physical Society at: 10.1103/PhysRevD.97.023520
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