Theories of modified gravity, where light scalars with non-trivial self-interactions and non-
minimal couplings to matter—chameleon and symmetron theories—dynamically suppress …

In this review we present a thoroughly comprehensive survey of recent work on modified
theories of gravity and their cosmological consequences. Amongst other things, we cover …

This paper describes the 25 year effort to measure vacuum magnetic birefringence and
dichroism with the PVLAS experiment. The experiment went through two main phases: the …

Explaining the origin of the acceleration of the expansion of the Universe remains as
challenging as ever. In this review, we present different approaches from dark energy to …

We explore the prospects for direct detection of dark energy by current and upcoming
terrestrial dark matter direct detection experiments. If dark energy is driven by a new light …

We analyze f (R) modifications of Einstein's gravity as dark energy models in the light of their
connection with chameleon theories. Formulated as scalar-tensor theories, the f (R) theories …

Scalar fields have played an important role in the development of the fundamental theories
of physics as well as in other branches of physics such as gravitation and cosmology. For a …

The chameleon model is a scalar field theory with a screening mechanism that explains how
a cosmologically relevant light scalar can avoid the constraints of intra-solar-system …

We present a proposal for a new experiment, the FINUDA magnet for Light Axion SearcH
(FLASH), a large resonant-cavity haloscope in a high static magnetic field which is planned …

We present phase shift measurements for neutron matter waves in vacuum and in low
pressure Helium using a method originally developed for neutron scattering length …