Skip to search formSkip to main contentSkip to account menu

Cosmological stability bound in massive gravity and bigravity

We give a simple derivation of a cosmological bound on the graviton mass for spatially flat FRW solutions in massive gravity with an FRW reference metric and for bigravity theories. This bound comes…
View PDF on arXiv (opens in a new tab)

Primordial gravitational waves from axion-gauge fields dynamics

Inspired by the chromo-natural inflation model of Adshead&Wyman, we reshape its scalar content to relax the tension with current observational bounds. Besides an inflaton, the setup includes a…
View on IOP Publishing (opens in a new tab)

Testing modified gravity at cosmological distances with LISA standard sirens

Modifications of General Relativity leave their imprint both on the cosmic expansion history through a non-trivial dark energy equation of state, and on the evolution of cosmological perturbations in…
View on IOP Publishing (opens in a new tab)

Prospects for fundamental physics with LISA

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 physics. Given the…
View on Springer (opens in a new tab)

ou rnal of Cosmology and Astroparticle Physics

Inflation models make specific predictions for a tensor-scalar-scalar three-point correlation, or bispectrum, between one gravitational-wave (tensor) mode and two density- perturbation (scalar)…

Large non-Gaussianities in the Effective Field Theory Approach to Single-Field Inflation: the Bispectrum

We perform the analysis of the trispectrum of curvature perturbations generated by the interactions characterizing a general theory of single-field inflation obtained by effective field theory…
View PDF on arXiv (opens in a new tab)

On the statistics of biased tracers in the Effective Field Theory of Large Scale Structures

With the completion of the Planck mission, in order to continue to gather cosmological information it has become crucial to understand the Large Scale Structures (LSS) of the universe to percent…
View on IOP Publishing (opens in a new tab)

Spectral Distortions of the CMB as a Probe of Inflation, Recombination, Structure Formation and Particle Physics

Following the pioneering observations with COBE in the early 1990s, studies of the cosmic microwave background (CMB) have focused on temperature and polarization anisotropies. CMB spectral…
View PDF on arXiv (opens in a new tab)

Galileon Duality

View PDF on arXiv (opens in a new tab)

Cosmological perturbations in massive gravity and the Higuchi bound

In de Sitter spacetime there exists an absolute minimum for the mass of a spin-2 field set by the Higuchi bound m2 ? 2H2. We generalize this bound to arbitrary spatially flat FRW geometries in the…
View PDF on arXiv (opens in a new tab)
...
By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy Policy (opens in a new tab), Terms of Service (opens in a new tab), and Dataset License (opens in a new tab)