1. Comparison of Einstein-Boltzmann solvers for testing general relativity
- Author
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Zhiqi Huang, Bin Hu, Constantinos Skordis, Boris Bolliet, Marco Raveri, Francesco Pace, Alexandre Barreira, Nelson A. Lima, Fabio Finelli, Simone Peirone, Yves Dirian, Julien Lesgourgues, Noemi Frusciante, C. Umiltà, Emilio Bellini, Miguel Zumalacárregui, Filippo Vernizzi, Mario Ballardini, Richard A. Battye, Daniela Paoletti, Pedro G. Ferreira, Baojiu Li, Ana Avilez-Lopez, Erminia Calabrese, M.M. Ivanov, Alessandra Silvestri, Ignacy Sawicki, Laboratoire de Physique Subatomique et de Cosmologie ( LPSC ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Institut d'Astrophysique de Paris ( IAP ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Lagrange de Paris, Sorbonne Universités, Institut de Physique Théorique - UMR CNRS 3681 ( IPHT ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay-Centre National de la Recherche Scientifique ( CNRS ), Bellini, E., Barreira, A., Frusciante, N., Hu, B., Peirone, S., Raveri, M., Zumalac{'a}rregui, M., Avilez-Lopez, A., Ballardini, M., Battye, R.A., Bolliet, B., Calabrese, E., Dirian, Y., Ferreira, P.G., Finelli, F., Huang, Z., Ivanov, M.M., Lesgourgues, J., Li, B., Lima, N.A., Pace, F., Paoletti, D., Sawicki, I., Silvestri, A., Skordis, C., Umilt{`a}, C., Vernizzi, F., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), and Sorbonne Université (SU)
- Subjects
Gravity (chemistry) ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,General relativity ,gravitation: model ,scalar tensor ,[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph] ,Cosmic microwave background ,Dark matter ,FOS: Physical sciences ,model: nonlocal ,Atomic ,01 natural sciences ,NO ,Gravitation ,symbols.namesake ,Theoretical physics ,General Relativity and Quantum Cosmology ,Particle and Plasma Physics ,dark matter: power spectrum ,Alternative gravity theories, Cosmic microwave background, Cosmological parameters, Dark energy ,0103 physical sciences ,numerical methods ,general relativity ,Nuclear ,Covariant transformation ,Einstein ,cosmic background radiation: power spectrum ,010306 general physics ,numerical calculations ,QC ,QB ,Physics ,Quantum Physics ,010308 nuclear & particles physics ,PE9_14 ,Molecular ,Spectral density ,Nuclear & Particles Physics ,gravitation: f(R) ,gravitation ,covariance ,astro-ph.CO ,symbols ,power spectrum: angular dependence ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Astronomical and Space Sciences ,Galileon ,Astrophysics - Cosmology and Nongalactic Astrophysics - 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., Comment: 23 pages; 11 figures. Matches version accepted in PRD
- Published
- 2018