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  1. link.aps.org

    the Horndeski theories and the QS forms of and in the remainder of this section. A. Horndeski theories and their EFT description The action of the most general scalar-tensor theory with second order equations of motion, also known as the Hordneski class of theories [19{21], can be written as S= Z d4x p g " X5 i=2 L i+ L M(g ;˜ m) #; (4) with L ...
    Author:Simone Peirone, Kazuya Koyama, Levon Pogosian, Levon Pogosian, Marco Raveri, Alessandra SilvestriPublished:2018
  2. link.aps.org

    Phenomenological functions Σ and μ, also known as G light / G and G matter / G, are commonly used to parametrize modifications of the growth of large-scale structure in alternative theories of gravity.We study the values these functions can take in Horndeski theories, i.e., the class of scalar-tensor theories with second order equations of motion.
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  4. Title: Large-scale structure phenomenology of viable Horndeski theories Authors: Simone Peirone , Kazuya Koyama , Levon Pogosian , Marco Raveri , Alessandra Silvestri View a PDF of the paper titled Large-scale structure phenomenology of viable Horndeski theories, by Simone Peirone and 4 other authors
    Author:Simone Peirone, Kazuya Koyama, Levon Pogosian, Levon Pogosian, Marco Raveri, Alessandra SilvestriPublished:2018
  5. pure.port.ac.uk

    the Horndeski theories and the QS forms of Σ and μ in the remainder of this section. A. Horndeski theories and their EFT description The action of the most general scalar-tensor theory with second order equations of motion, also known as the Hordneski class of theories [18-20], can be written as 1Δ ¼ δþ3aHv/k, where δ is the ...
  6. semanticscholar.org

    Along with that, we check the validity of the quasi-static approximation within different corners of Horndeski theory. Our results show that, even with the tight bound on the present day speed of gravitational waves, there is room within Horndeski theories for non-trivial signatures of modified gravity at the level of linear perturbations.
  7. well as the classes of theories considered in this work. In Section III we discuss the methodology adopted in order to build the samples and covariance matrices, in Sec-tion IV we present our results and, nally, in Section V we discuss and summarise the main results. II. EVOLUTION OF LARGE SCALE STRUCTURE IN HORNDESKI THEORIES
  8. researchportal.port.ac.uk

    Large-scale structure phenomenology of viable Horndeski theories. Simone Peirone, Kazuya Koyama, Levon Pogosian, Marco Raveri, Alessandra Silvestri. Institute of Cosmology & Gravitation; Research output: Contribution to journal › Article › peer-review. 104 Downloads (Pure) Overview;
  9. academia.edu

    This is the accepted manuscript made available via CHORUS. The article has been published as: Phenomenology of large scale structure in scalar-tensor theories: Joint prior covariance of w_{DE}, Σ, and μ in Horndeski theories Juan Espejo, Simone Peirone, Marco Raveri, Kazuya Koyama, Levon Pogosian, and Alessandra Silvestri Phys. Rev. D 99, 023512 — Published 8 January 2019 DOI: 10.1103 ...

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