103 citations · 675 across the 29 of their papers we have counts for
7 papers · 1 filter
The spatial gauge-dependence of single-field inflationary bispectra
Ermis Mitsou, Jaiyul Yoo
In single-field inflationary models the bispectra are usually given in the -gauge, because its temporal part leads to the super-horizon conservation of fluctuations. However, th…
A multipole-expanded effective field theory for vortex ring-sound interactions
Sebastian Garcia-Saenz, Ermis Mitsou, Alberto Nicolis
The low-energy dynamics of a zero temperature superfluid or of the compressional modes of an ordinary fluid can be described by a simple effective theory for a scalar field---the s…
No-go for Partially Massless Spin-2 Yang-Mills
Sebastian Garcia-Saenz, Kurt Hinterbichler, Austin Joyce +2
There are various no-go results forbidding self-interactions for a single partially massless spin-2 field. Given the photon-like structure of the linear partially massless field, i…
Cosmological dynamics and dark energy from non-local infrared modifications of gravity
Stefano Foffa, Michele Maggiore, Ermis Mitsou
We perform a detailed study of the cosmological dynamics of a recently proposed infrared modification of the Einstein equations, based on the introduction of a non-local term const…
Apparent ghosts and spurious degrees of freedom in non-local theories
Stefano Foffa, Michele Maggiore, Ermis Mitsou
Recent work has shown that non-local modifications of the Einstein equations can have interesting cosmological consequences and can provide a dynamical origin for dark energy, cons…
A non-local theory of massive gravity
Maud Jaccard, Michele Maggiore, Ermis Mitsou
We construct a fully covariant theory of massive gravity which does not require the introduction of an external reference metric, and overcomes the usual problems of massive gravit…