1 citations · 2 across the 3 of their papers we have counts for
8 papers
Reply to "Acausality of Massive Charged Spin 2 Fields"
M. Novello, S. E. Perez Bergliaffa, R. P. Neves
We show that, contrary to the claim in hep-th/0304050, the propagation of a spin-2 field in an electromagnetic background is {\em causal}.
Causality and charged spin-2 fields in an electromagnetic background
M. Novello, S. E. Perez Bergliaffa, R. P. Neves
We show that, contrary to common belief, the propagation of a spin-2 field in an electromagnetic background is {\em causal}. The proof will be given in the Fierz formalism which, a…
Geometrical description of spin-2 fields
M. Novello
We show that the torsion of a Cartan geometry can be associated to two spin-2 fields. This structure allows a new approach to deal with the proposal of geometrization of spin-2 fie…
Spin-2 field theory in curved spacetime
M. Novello, R. P. Neves
We present a new formulation to deal with the consistency problem of a massive spin-2 field in a curved spacetime. Using Fierz variables to represent the spin-2 field, we show how…
Closed Lightlike Curves in Non-linear Electrodynamics
M. Novello, V. A. De Lorenci, E. Elbaz +1
We show that non-linear electrodynamics may induce a photon to follow a closed path in spacetime. We exhibit a specific case in which such closed lightlike curve (CLC) appears
Nonlinear electrodynamics and FRW cosmology
V. A. De Lorenci, R. Klippert, M. Novello +1
Maxwell electrodynamics, considered as a source of the classical Einstein field equations, leads to the singular isotropic Friedmann solutions. We show that this singular behavior…