111 citations · 171 across the 12 of their papers we have counts for
7 papers · 1 filter
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}.
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…
The Binary Pulsar Is Not the Ultimate Test for the Theory of Gravity
M. Novello, V. A. De Lorenci
General relativity can be formulated either as in its original geometrical version (Einstein, 1915) or as a field theory (Feynman, 1962). In the Feynman presentation of Einstein th…