124 citations · 397 across the 21 of their papers we have counts for
22 papers
Gravitational radiation with
Béatrice Bonga, Claudio Bunster, Alfredo Pérez
We study gravitational radiation for a positive value of the cosmological constant . We rely on two battle-tested procedures: (i) We start from the same null coordinate system u…
Bondi-Metzner-Sachs invariance and electric-magnetic duality
Claudio Bunster, Andrés Gomberoff, Alfredo Pérez
We exhibit a Hamiltonian formulation, both for electromagnetism and gravitation, in which it is not required that the Bondi "news" vanish, but only that the incoming news be equal…
Regge-Teitelboim analysis of the symmetries of electromagnetic and gravitational fields on asymptotically null spacelike surfaces
Claudio Bunster, Andrés Gomberoff, Alfredo Pérez
We present a new application of the Regge-Teitelboim method for treating symmetries which are defined asymptotically. It may be regarded as complementary to the one in their origin…
Gravitational domain walls and the dynamics of
Claudio Bunster, Andrés Gomberoff
From the point of view of elementary particle physics the gravitational constant is extraordinarily small. This has led to ask whether it could have decayed to its present valu…
Conformal field theory of a space-filling string of gravitational ancestry
Claudio Bunster, Alfredo Perez
We present a classical conformal field theory on an arbitrary two-dimensional spacetime background. The dynamical object is a space-filling string, and the evolution may be thought…
Space-filling branes of gravitational ancestry
Claudio Bunster, Alfredo Perez
We introduce a new kind of space-filling brane, which we term "G-brane" because its action is a descendant of the gravitational action. The G-brane may be thought of as the remanen…