294 citations · 713 across the 10 of their papers we have counts for
5 papers · 1 filter
Gravitational waves in bigravity cosmology
Giulia Cusin, Ruth Durrer, Pietro Guarato +1
In this paper we study gravitational wave perturbations in a cosmological setting of bigravity which can reproduce the ΛCDM background and large scale structure. We show that in ge…
Does small scale structure significantly affect cosmological dynamics?
Julian Adamek, Chris Clarkson, Ruth Durrer +1
The large-scale homogeneity and isotropy of the universe is generally thought to imply a well defined background cosmological model. It may not. Smoothing over structure adds in an…
Galaxy number counts to second order and their bispectrum
Enea Di Dio, Ruth Durrer, Giovanni Marozzi +1
We determine the number counts to second order in cosmological perturbation theory in the Poisson gauge and allowing for anisotropic stress. The calculation is performed using an i…
Can primordial magnetic fields be the origin of the BICEP2 data?
Camille Bonvin, Ruth Durrer, Roy Maartens
If the B-mode signal in the CMB polarization seen by the BICEP2 experiment is confirmed, it has dramatic implications for models of inflation. The result is also in tension with Pl…
Can Self-Ordering Scalar Fields explain the BICEP2 B-mode signal?
Ruth Durrer, Daniel G. Figueroa, Martin Kunz
We show that self-ordering scalar fields (SOSF), i.e. non-topological cosmic defects arising after a global phase transition, cannot explain the B-mode signal recently announced by…