550 citations · 5.4k across the 64 of their papers we have counts for
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Beyond ΛCDM with the SKA Observatory -- I: Probing Gravity on Cosmological Scales
S. Camera, C. Addis, S. L. Guedezounme +26
General relativity (GR) is currently the best description of the gravitational interaction at our disposal and is one of the foundations of the concordance cosmological model. For…
-EFTCAMB: A Cobaya-Integrated, Python-Wrapped Extension of EFTCAMB for Covariant Horndeski Gravity
Gen Ye, Shijie Lin, Jiaming Pan +6
We present , the official successor to . The original is designed as a consistent and numerically stable implemen…
Cosmological study of a symmetric teleparallel gravity model
Tiago B. Gonçalves, Luís Atayde, Noemi Frusciante
We study a symmetric teleparallel gravity with a Lagrangian of logarithmic form. The full model leads to an accelerated universe and for specific values of the free parameters the…
New Horizons for Fundamental Physics with LISA
K. G. Arun, Enis Belgacem, Robert Benkel +138
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitatio…
A 3D Phase Space Analysis of Scalar Field Potentials
Francesco Pace, Noemi Frusciante
In this study, we present the phase-space analysis of Quintessence models specified by the choice of two potentials, namely the Recliner potential and what we call the broken expon…
Modified Gravity and Cosmology: An Update by the CANTATA Network
Emmanuel N. Saridakis, Ruth Lazkoz, Vincenzo Salzano +50
General Relativity and the CDM framework are currently the standard lore and constitute the concordance paradigm. Nevertheless, long-standing open theoretical issues, as well as…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
Tracker and scaling solutions in DHOST theories
Noemi Frusciante, Ryotaro Kase, Kazuya Koyama +2
In quadratic-order degenerate higher-order scalar-tensor (DHOST) theories compatible with gravitational-wave constraints, we derive the most general Lagrangian allowing for tracker…
Most general cubic-order Horndeski Lagrangian allowing for scaling solutions and the application to dark energy
Noemi Frusciante, Ryotaro Kase, Nelson J. Nunes +1
In cubic-order Horndeski theories where a scalar field is coupled to nonrelativistic matter with a field-dependent coupling , we derive the most general Lagrangian having…
The role of the tachyonic instability in Horndeski gravity
Noemi Frusciante, Georgios Papadomanolakis, Simone Peirone +1
The tachyonic instability is associated with the unboundedness of the Hamiltonian from below and results in an unstable low- regime. In the cosmological exploration of modified…
New scaling solutions in cubic Horndeski theories
Ines S. Albuquerque, Noemi Frusciante, Nelson J. Nunes +1
We propose a viable dark energy scenario in the presence of cubic Horndeski interactions and a standard scalar-field kinetic term with two exponential potentials. We show the exist…
Tackling non-linearities with the effective field theory of dark energy and modified gravity
Noemi Frusciante, Georgios Papadomanolakis
We present the extension of the effective field theory framework to the mildly non-linear scales. The effective field theory approach has been successfully applied to the late time…
A de Sitter limit analysis for dark energy and modified gravity models
Antonio De Felice, Noemi Frusciante, Georgios Papadomanolakis
The effective field theory of dark energy and modified gravity is supposed to well describe, at low energies, the behaviour of the gravity modifications due to one extra scalar deg…
On the stability conditions for theories of modified gravity in presence of matter fields
Antonio De Felice, Noemi Frusciante, Georgios Papadomanolakis
We present a thorough stability analysis of modified gravity theories in the presence of matter fields. We use the Effective Field Theory framework for Dark Energy and Modified Gra…
New Spherically Symmetric Solutions in f(R)-gravity by Noether Symmetries
S. Capozziello, N. Frusciante, D. Vernieri
Spherical symmetry for f(R)-gravity is discussed by searching for Noether symmetries. The method consists in selecting conserved quantities in form of currents that reduce dynamics…