Some Aspects of Tachyon Field Cosmology

Kourosh Nozari; Narges Rshidi

Some Aspects of Tachyon Field Cosmology

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 1306.5853 v1 pith:IT2TEV2O submitted 2013-06-25 gr-qc hep-th

Kourosh Nozari , Narges Rshidi This is my paper

classification gr-qchep-th

keywords fieldtachyoncoupleddynamicsminimallymodelnon-minimallyspace

verification ladder T0 review T1 audit T2 compute T3 formal

0 comments

abstract

We study inflation, perturbations, non-gaussinity and late-time cosmological dynamics of a tachyon field both minimally and non-minimally coupled to gravity. By analyzing the parameters space of the model, the viability of the model in confrontation with recent observational data is considered. In a dynamical system technique, we study the phase space dynamics of both minimally and non-minimally coupled tachyon field. We find the fixed points (lines in our setup) and explore their stability. Also, we perform a statefinder diagnostic to both cases and show that the trajectories of the state finder pairs reach a stable state which is corresponding to a $\Lambda$CDM scenario.

Discussion (0). Sign in 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

Gravitational memory effects in Tachyon gravity
gr-qc 2025-07 conditional novelty 5.0 of 10

In tachyon gravity, the scalar field adds a breathing memory mode to gravitational waves and modifies the Bondi mass loss and soft theorems.

Pith tools