147 citations · 935 across the 36 of their papers we have counts for
3 papers · 1 filter
Gravitational Tunneling in Lorentz Violating Gravity
F. Del Porro, M. Herrero-Valea, S. Liberati +1
Black holes in Lorentz violating gravity, such as Einstein--Aether or Horava--Lifshitz Gravity, are drastically different from their general relativistic siblings. Although they al…
UV graviton scattering and positivity bounds from IR dispersion relations
M. Herrero-Valea, A. S. Koshelev, A. Tokareva
Scattering amplitudes mediated by graviton exchange display IR singularities in the forward limit. This obstructs standard application of positivity bounds based on twice subtracte…
Time Orientability and Particle Production from Universal Horizons
Francesco Del Porro, Mario Herrero-Valea, Stefano Liberati +1
We discuss particle production in spacetimes endowed with a universal horizon in Einstein--Aether and Horava gravity. We argue that continuity and differentiability of the lapse fu…