Browsing Research Articles (Physics) by Author "Bellini, Emilio"

Now showing items 1-2 of 2

    • A comparison of Einstein-Boltzmann solvers for testing General Relativity 

      Bellini, Emilio; Barreira, A.; Frusciante, N.; Ballardini, M. (American Physical Society, 2018)
      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 ...

    • Matter bispectrum in cubic Galileon cosmologies 

      Bartolo, Nicola; Bellini, Emilio; Bertacca, Daniele; Matarrese, Sabino (IOP Science, 2013)
      In this paper we obtain the bispectrum of dark matter density perturbations in the frame of covariant cubic Galileon theories. This result is obtained by means of a semi- analytic approach to second-order perturbations ...