13 citations · 14 across the 2 of their papers we have counts for
15 papers · 1 filter
Massless Positivity in Graviton Exchange
Mario Herrero-Valea, Raquel Santos-Garcia, Anna Tokareva
We formulate Positivity Bounds for scattering amplitudes including exchange of massless particles. We generalize the standard construction through dispersion relations to include t…
Weighing the Vacuum Energy
Enrique Alvarez, Jesus Anero, Raquel Santos-Garcia
We discuss the weight of vacuum energy in various contexts. First, we compute the vacuum energy for flat spacetimes of the form , where $\mathbb{T}^…
Non-minimal Tinges of Unimodular Gravity
Mario Herrero-Valea, Raquel Santos-Garcia
Unimodular Gravity is normally assumed to be equivalent to General Relativity for all matters but the character of the Cosmological Constant. Here we discuss this equivalence in th…
Structural stability of spherical horizons
Enrique Alvarez, Jesus Anero, Raquel Santos-Garcia
This paper is concerned with the structural stability of spherical horizons. By this we mean stability with respect to variations of the second member of the corresponding differen…
A note on unimodular AdS supergravity
Jesus Anero, Carmelo P. Martin, Raquel Santos-Garcia
We put forward a unimodular anti-de Sitter supergravity theory off shell. This theory, where the Cosmological Constant does not couple to gravity, has a unique maximally…
CFT in Conformally Flat Spacetimes
Enrique Alvarez, Raquel Santos-Garcia
A new class of conformal field theories is presented, where the background gravitational field is conformally flat. Conformally flat (CF) spacetimes enjoy conformal properties quit…