162 citations · 522 across the 26 of their papers we have counts for
Showing 2009Show all
3 papers · 1 filter
gr-qc2009★ 85 cited
Revisiting observables in generally covariant theories in the light of gauge fixing methods
J. M. Pons, D. C. Salisbury, K. A. Sundermeyer
We derive for generally covariant theories the generic dependency of observables on the original fields, corresponding to coordinate-dependent gauge fixings. This gauge choice is e…
physics.hist-ph2009★ 14 cited
Leon Rosenfeld and the challenge of the vanishing momentum in quantum electrodynamics
Donald Salisbury
Leon Rosenfeld published in 1930 the first systematic Hamiltonian approach to Lagrangian models that possess a local gauge symmetry. The application of this formalism to theories w…
gr-qc2009★ 12 cited
Gravitational observables, intrinsic coordinates, and canonical maps
J. M. Pons, D. C. Salisbury, K. A. Sundermeyer
It is well known that in a generally covariant gravitational theory the choice of spacetime scalars as coordinates yields phase-space observables (or "invariants"). However their r…