REVIEW 4 cited by
Towards a quantum notion of covariance in spherically symmetric loop quantum gravity
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
read the original abstract
The covariance of loop quantum gravity studies of spherically symmetric space-times has recently been questioned. This is a reasonable worry, given that they are formulated in terms of slicing-dependent variables. We show explicitly that the resulting space-times, obtained from Dirac observables of the quantum theory, are covariant in the usual sense of the way -- they preserve the quantum line element -- for any gauge that is stationary (in the exterior, if there is a horizon). The construction depends crucially on the details of the Abelianized quantization considered, the satisfaction of the quantum constraints and the recovery of standard general relativity in the classical limit and suggests that more informal polymerization constructions of possible semi-classical approximations to the theory can indeed have covariance problems. This analysis is based on the understanding of how slicing dependent quantities as the metric arise in a quantum context in terms of parameterized observables. It has implications beyond loop quantum gravity that hold for general approaches to quantum space time theories.
Forward citations
Cited by 4 Pith papers
-
Dust shell in effective loop quantum black hole model
In a polymerized loop-quantum-gravity black hole model, a collapsing dust shell bounces and, for sufficiently heavy shells, follows a spacelike trajectory through the horizon, implying a finite horizon lifetime and a ...
-
Radiative properties of a nonsingular black hole: Hawking radiation and gray-body factor
A singularity-free black hole radiates more coldly and more like a perfect black body than Schwarzschild does, and, on one assumption about its parameters, it ends as a zero-temperature remnant instead of evaporating.
-
Motion of spinning particles around a quantum-corrected black hole without Cauchy horizons
For the covariant quantum-corrected black hole without Cauchy horizons, the effective potential, circular orbits, ISCO, and bound trajectories of spinning particles depend only weakly on the quantum parameter but stro...
-
Periodic orbits and gravitational waveforms in quantum-corrected black hole spacetimes
For one effective quantum gravity black hole model (BH-I), the quantum parameter shifts periodic orbits and delays gravitational wave phase, while for the other model (BH-II) the effect is negligible, making BH-I pote...
Discussion (0). Continue with ORCID to comment.