3 papers
gr-qc2019
The Classical Symmetron Force in Casimir Experiments
Benjamin Elder, Valeri Vardanyan, Yashar Akrami +3
The symmetron is a typical example of screened modified gravity, wherein the symmetron force is dynamically suppressed in dense environments. This allows it to hide in traditional…
hep-ph2019
Dynamical Friction in Superfluids
Lasha Berezhiani, Benjamin Elder, Justin Khoury
We compute the dynamical friction on a small perturber moving through an inviscid fluid, i.e., a superfluid. Crucially, we account for the tachyonic gravitational mass for sound wa…
physics.atom-ph2018
Experiment to detect dark energy forces using atom interferometry
Dylan Sabulsky, Indranil Dutta, E. A. Hinds +3
The accelerated expansion of the universe motivates a wide class of scalar field theories that modify gravity on large scales. In regions where the weak field limit of General Rela…