162 citations · 781 across the 28 of their papers we have counts for
28 papers
On cosmological expansion and local physics
J. M. Pons, P. Talavera
We find an exact convergence in the local dynamics described by two supposedly antagonistic approaches in modern cosmology: one starting from an expanding universe perspective such…
Observers with constant proper acceleration, constant proper jerk, and beyond
Josep M. Pons, Ferran de Palol
We discuss in Minkowski spacetime the differences between the concepts of constant proper -acceleration and of vanishing -acceleration. By -acceleration we essentially…
Noether symmetries for fields and branes in backgrounds with Killing vectors
Josep M. Pons
We show that Belinfante construction of an improved energy-momentum tensor can be carried over to curved backgrounds, in analogy to the case of flat spacetime. The results hold irr…
Dynamics of Carroll Strings
Biel Cardona, Joaquim Gomis, Josep M Pons
We construct the canonical action of a Carroll string doing the Carroll limit of a canonical relativistic string. We also study the Killing symmetries of the Carroll string, which…
Non-linear Realizations, Goldstone bosons of broken Lorentz rotations and effective actions for p-branes
Joaquim Gomis, Kiyoshi Kamimura, Josep M. Pons
We consider the non-linear realizations of the Poincare group for p-branes with local subgroup SO(1,p)*SO(D-(p+1)). The Nambu-Goto p-brane action is constructed using the Maurer Ca…
Observables in classical canonical gravity: folklore demystified
J. M. Pons, D. C. Salisbury, K. A. Sundermeyer
We give an overview of some conceptual difficulties, sometimes called paradoxes, that have puzzled for years the physical interpetation of classical canonical gravity and, by exten…