REVIEW 2 cited by
Dynamical Dark Energy, Dual Spacetime, and DESI
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
abstract
In this paper we discuss possible consequences of a manifestly non-commutative and $T$-duality covariant formulation of string theory on dark energy, when the correspondence between short distance (UV) and long distance (IR) physics is taken into account. We demonstrate that the dark energy is dynamical, \textit{i.e.}, time-dependent, and we compute the allowed values of $w_0$ and $w_a$, given by $w(a) = w_0+w_a(1-a)$, which compare favorably to the most recent observations by DESI. From this point of view, the latest results from DESI might point to a fundamentally new understanding of quantum spacetime in the context of quantum gravity.
Forward citations
Cited by 2 Pith papers
-
Topological defects as effective dynamical dark energy
A few percent domain-wall component gives a mild (Δχ² = -1.72) improvement over ΛCDM when fitting DESI DR2 BAO and DESY5 supernovae, but the evidence is inconclusive.
-
Looking beyond lambda
A perspective piece argues that LambdaCDM is showing cracks and that cosmologists should prepare for a beyond-LambdaCDM era with more complex dark energy models.
Discussion (0). Sign in to comment.