21 citations · 56 across the 3 of their papers we have counts for
4 papers
General relativity in the radial gauge: Reduced phase space and canonical structure
Norbert Bodendorfer, Jerzy Lewandowski, Jedrzej Świeżewski
Firstly, we present a reformulation of the standard canonical approach to spherically symmetric systems in which the radial gauge is imposed. This is done via the gauge unfixing te…
A quantum reduction to spherical symmetry in loop quantum gravity
Norbert Bodendorfer, Jerzy Lewandowski, Jedrzej Świeżewski
Based on a recent purely geometric construction of observables for the spatial diffeomorphism constraint, we propose two distinct quantum reductions to spherical symmetry within fu…
On the properties of the irrotational dust model
Jedrzej Świeżewski
In this note we analyze the model of the irrotational dust used recently to deparametrize gravitational action. We prove that the remarkable fact that the Hamiltonian is not a squa…
Relational Evolution of Observables for Hamiltonian-Constrained Systems
Andrea Dapor, Wojciech Kamiński, Jerzy Lewandowski +1
Evolution of systems in which Hamiltonians are generators of gauge transformations is a notion that requires more structure than the canonical theory provides. We identify and stud…