Pith. sign in

REVIEW 2 cited by

Damped perturbations in the no-boundary state

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

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 1804.01102 v2 pith:AH3ALLZM submitted 2018-04-03 gr-qc hep-th

Juan Diaz Dorronsoro , Jonathan J. Halliwell , James B. Hartle , Thomas Hertog , Oliver Janssen , Yannick Vreys This is my paper · ORCID
classification gr-qchep-th
keywords no-boundaryperturbationsscaledampedfactorproposalstateaccount
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

We evaluate the no-boundary path integral exactly in a Bianchi IX minisuperspace with two scale factors. In this model the no-boundary proposal can be implemented by requiring one scale factor to be zero initially together with a judiciously chosen regularity condition on the momentum conjugate to the second scale factor. Taking into account the non-linear backreaction of the perturbations we recover the predictions of the original semiclassical no-boundary proposal. In particular we find that large perturbations are strongly damped, consistent with vacuum state wave functions.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 2 Pith papers

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

  1. A Small-Throat Boundary Condition for the Tunneling Wave Function of the Universe

    gr-qc 2026-07 conditional novelty 6.0 of 10

    Tunneling wave function of a closed universe is recovered as the ε o0 limit of a Neumann-plus-small-domain path integral with radiation-induced throat, excluding the unsuppressed outer saddle.

  2. Holographic (Eternal) Inflation

    hep-th 2024-11 conditional novelty 6.0 of 10

    Complex mass deformations of ABJM theory yield a holographic wave function for an inflationary universe, dominated by the Hartle-Hawking no-boundary state with a subleading tunneling term.

Pith tools