Pith. sign in

REVIEW 1 cited by

The initial conditions of the universe: how much isocurvature is allowed?

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 astro-ph/0401417 v1 pith:DK5NKNNX submitted 2004-01-21 astro-ph gr-qchep-th

M. Bucher , J. Dunkley , P. G. Ferreira , K. Moodley , C. Skordis This is my paper · ORCID
classification astro-phgr-qchep-th
keywords alloweddirectionsnon-adiabaticadiabaticbaryoncancellationsconditionsconstraints
verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments
read the original abstract

We investigate the constraints imposed by the current data on correlated mixtures of adiabatic and non-adiabatic primordial perturbations. We discover subtle flat directions in parameter space that tolerate large (~60%) contributions of non-adiabatic fluctuations. In particular, larger values of the baryon density and a spectral tilt are allowed. The cancellations in the degenerate directions are explored and the role of priors elucidated.

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. The Cosmological Dipole in Tilted Anisotropic Universes

    astro-ph.CO 2025-12 conditional novelty 6.0 of 10

    In tilted Bianchi cosmologies, a 10^-3 dipole is impossible under current shear and curvature bounds except possibly for a Khronon field.

Pith tools