516 citations · 2.6k across the 46 of their papers we have counts for
46 papers
Bounding anisotropic Lorentz Invariance Violation from measurements of the effective energy scale of quantum gravity
Merce Guerrero, Anna Campoy-Ordaz, Robertus Potting +1
Observations of energy-dependent photon time delays from distant flaring sources provide significant constraints on Lorentz Invariance Violation (LIV). Such effects originate from…
The de Sitter swampland conjectures in the context of Chaplygin-inspired inflation
Orfeu Bertolami, Robertus Potting, Paulo M. Sá
In this work, we discuss the de Sitter swampland conjectures in the context of the generalized Chaplygin-inspired inflationary model. We demonstrate that these conjectures can be s…
A stable Lorentz-breaking model for an antisymmetric two-tensor
Robertus Potting
In this work we investigate possible actions for antisymmetric two-tensor field models subject to constraints that force the field to acquire a nonzero vacuum expectation value, th…
Massive Gravity and Lorentz Symmetry
Robertus Potting
We consider Lorentz-symmetry properties of the ghost-free massive gravity theory proposed by de Rham, Gabadadze, and Tolley. In particular, we present potentially observable effect…
The Boltzmann equation and equilibrium thermodynamics in Lorentz-violating theories
Robertus Potting
In this work we adapt the foundations of relativistic kinetic theory and the Boltzmann equation to particles with Lorentz-violating dispersion relations. The latter are taken to be…
Coupled quintessence with a generalized interaction term
Robertus Potting, Paulo M. Sá
We investigate a cosmological model in which dark energy, represented by a quintessential scalar field, is directly coupled to a dark-matter perfect fluid. We are interested in sol…