Testing local Lorentz invariance with short-range gravity

Understand

The Newton limit of gravity is studied in the presence of Lorentz-violating gravitational operators of arbitrary mass dimension.

• The linearized modified Einstein equations are obtained and the perturbative solutions are constructed and characterized.
• We develop a formalism for data analysis in laboratory experiments testing gravity at short range and demonstrate that these tests provide unique sensitivity to deviations from local Lorentz invariance.