20 citations · 26 across the 11 of their papers we have counts for
5 papers · 1 filter
Circumventing the Ricci-inverse no-go theorem with complexifiable singularities: a novel dark energy model
Mattia Scomparin
Ricci-inverse gravity is a new type of fourth-order gravity theory based on the anti-curvature tensor, that is, the inverse of the Ricci tensor. In this context, we introduce a nov…
Cadabra and Python algorithms in General Relativity and Cosmology II: Gravitational Waves
Oscar Castillo-Felisola, Dominic T. Price, Mattia Scomparin
Computer Algebra Systems (CASs) like Cadabra Software play a prominent role in a wide range of research activities in physics and related fields. We show how Cadabra language is ea…
Cadabra and Python algorithms in General Relativity and Cosmology I: Generalities
Oscar Castillo-Felisola, Dominic T. Price, Mattia Scomparin
The aim of this work is to present a series of concrete examples which illustrate how the computer algebra system Cadabra can be used to manipulate expressions appearing in General…
Damping of cosmological tensor modes in Horndeski theories after GW170817
Mattia Scomparin, Simone Vazzoler
This paper investigates the propagation of cosmological gravitational waves interacting with free-streaming neutrinos within the context of Horndeski theories of gravity constraine…
Cosmic structures and gravitational waves in ghost-free scalar-tensor theories of gravity
Nicola Bartolo, Purnendu Karmakar, Sabino Matarrese +1
We study cosmic structures in the quadratic Degenerate Higher Order Scalar Tensor (qDHOST) model, which has been proposed as the most general scalar-tensor theory (up to quadratic…