Pith. sign in

REVIEW 1 cited by

Imprints of the operator ordering ambiguity on the dynamics of perfect fluid dominated quantum universe

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

arxiv 2310.09905 v3 pith:SY6ZWYWX submitted 2023-10-15 gr-qc hep-th

classification gr-qchep-th
keywords orderingquantumimprintspeakedquantum-correctedspacetimestatesambiguity
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

Sharply peaked quantum states are conjectured to be conducive to the notion of a quantum-corrected spacetime. We investigate this conjecture for a flat-FLRW model with perfect fluid, where a generalized ordering scheme is considered for the gravitational Hamiltonian. We study the implications of different ordering choices on the dynamics of the quantum universe. We demonstrate that the imprints of the operator ordering ambiguity are minimal, and quantum fluctuations are small in the case of sharply peaked states, leading to a consistent notion of a quantum-corrected spacetime defined via the expectation value of the scale factor. Surprisingly, the ordering imprints survive far away from the singularity through the quantum fluctuations in the quantum-corrected spacetime for broadly peaked states.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Unitary quantum matter-bounce in a universe with a positive cosmological constant

    gr-qc 2025-05 conditional novelty 6.0 of 10

    Quantizing a dust-filled universe with positive cosmological constant yields a unitary wave packet whose expectation value bounces, avoiding the classical Big Bang singularity.

Pith tools