119 citations · 185 across the 5 of their papers we have counts for
5 papers
Lorentz Covariant Supertranslation Frames for the Angular Momentum Aspect
Reza Javadinezhad, Massimo Porrati
In this letter, we review the well known ambiguity in defining angular momentum (and mass dipole) fluxes in general relativity and we reinterpret recent works that resolve the ambi…
Three Puzzles with Covariance and Supertranslation Invariance of Angular Momentum Flux (with Solutions)
Reza Javadinezhad, Massimo Porrati
We describe and solve three puzzles arising in covariant and supertranslation-invariant formulas for the flux of angular momentum and other Lorentz charges in asymptotically flat s…
Naturalness in Cosmological Initial Conditions
F. Nitti, M. Porrati, J. -W. Rombouts
We propose a novel approach to the problem of constraining cosmological initial conditions. Within the framework of effective field theory, we classify initial conditions in terms…
Strong Coupling vs. 4-D Locality in Induced Gravity
M. Porrati, J. -W. Rombouts
We re-examine the problem of strong coupling in a regularized version of DGP (or ``brane-induced'') gravity. We find that the regularization of ref. hep-th/0304148 differs from DGP…
Fully Covariant Van Dam-Veltman-Zakharov Discontinuity, and Absence Thereof
M. Porrati
In both old and recent literature, it has been argued that the celebrated van Dam-Veltman-Zakharov (vDVZ) discontinuity of massive gravity is an artifact due to linearization of th…