Pith. sign in

REVIEW 1 cited by

Mass density vs. energy density at cosmological scales

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 2309.02989 v2 pith:HKDZP46H submitted 2023-09-06 gr-qc astro-ph.CO

classification gr-qcastro-ph.CO
keywords densityenergymasspowercosmologicalformulascalesspectra
verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments
abstract

In the presence of the gravitational field, the energy density of matter no longer coincides with its mass density. A discrepancy exists, of course, also between the associated power spectra. Within the $\Lambda$CDM model, we derive a formula that relates the power spectrum of the energy density to that of the mass density and test it with the help of N-body simulations run in comoving boxes of 2.816 Gpc/$h$. The results confirm the validity of the derived formula and simultaneously show that the power spectra diverge significantly from one another at large cosmological scales.

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. Large Language Models for Material Property Predictions: elastic constant tensor prediction and materials design

    cond-mat.mtrl-sci 2024-11 conditional novelty 6.0 of 10

    Fine-tuned Llama2-7b with text prompts predicts mean elastic constant components with MAE 2.32 GPa and R-squared 0.965, beating Darwin and MatTen on the same Materials Project dataset.

Pith tools