Denys Wilkinson Building, Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH
Ben Elder (Imperial College London)
Natalia Porqueres, Matteo Zennaro
Ben Elder - Searching for dark energy and new gravitational physics in the laboratory
The existence of a small cosmological constant in our universe hints that there is more to gravity than meets the eye. A broad class of theories that modify gravity contain a screening mechanism that makes them particularly difficult to detect. I will discuss how atom interferometry provides an exciting new window into this type of modified gravity, focusing in particular on the chameleon and the symmetron. I will put these tests into the context of other short-range tests of gravity, particularly Casimir sensors and atomic spectroscopy.