What does this research mean for the field?

Dynamical dark energy and the crossing of the phantom divide can be modeled as the observable signature of an evolving macroscopic vacuum tension relaxing towards equilibrium, without requiring a fundamental phantom field. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.ESTABLISHES_NEW_DIRECTION.

What question did this study set out to answer?

To determine whether an evolving macroscopic vacuum tension within a structurally non-saturated porous-vacuum framework can explain dynamical dark energy and late-time cosmic acceleration without invoking fundamental phantom fields.

August 30, 2026Open Access

From Vacuum Tension to Dynamical Dark Energy - A Porous-Vacuum Framework Consistent with the Late-Time Evolution Favoured by Current Cosmological Data

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Authors

MCMauro Corsini

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Implication

Theoretical modeling demonstrates dynamical dark energy behavior across late-time cosmic evolution, suggesting dark energy signatures reflect non-saturated vacuum relaxation rather than phantom...

Key Points

To determine whether an evolving macroscopic vacuum tension within a structurally non-saturated porous-vacuum framework can explain dynamical dark energy and late-time cosmic acceleration without invoking fundamental phantom fields.
Applied covariant conservation to an evolving coarse-grained vacuum tension parameter within a porous-vacuum cosmological model.
Mapped vacuum tension dynamics to effective dark energy equation-of-state parameters and compared the trajectories to DESI DR2, cosmic microwave background, and Type Ia supernovae data.
Demonstrated that increasing vacuum tension yields an equation of state w < -1, a stationary point corresponds to w = -1, and decreasing tension yields w > -1 without requiring exotic phantom fields.
Showed that the observed late-time parameter sector (w0 > -1, wa < 0) corresponds to a vacuum tension that peaked recently and is decreasing toward a finite residual value S∞ > 0 and asymptotic expansion rate Hmin > 0.

Cite This Study

Mauro Corsini (2026) studied this question.

synapsesocial.com/papers/6a93f1056c1a8fb52e79db22 https://doi.org/10.5281/zenodo.22149174

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Implication

Theoretical modeling demonstrates dynamical dark energy behavior across late-time cosmic evolution, suggesting dark energy signatures reflect non-saturated vacuum relaxation rather than phantom...

From Vacuum Tension to Dynamical Dark Energy - A Porous-Vacuum Framework Consistent with the Late-Time Evolution Favoured by Current Cosmological Data

Discussion

Member takes

Implication

Key Points

Cite This Study

From Vacuum Tension to Dynamical Dark Energy - A Porous-Vacuum Framework Consistent with the Late-Time Evolution Favoured by Current Cosmological Data

Discussion

Member takes

Implication

Key Points

Cite This Study

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