Decelerating Expansion in Non-Equilibrium Dynamics: Mass Growth, Negative Acceleration, and the Falsifiable…

Abstract

We show that in Non-Equilibrium Dynamics (NED), the universe is currently decelerat-

ing, and derive the deceleration parameter

q0 =

This is a direct consequence of the exact cosmic equation

M′

v + M a = F0

with the exact mass scaling M &prop; R(R − ℓp). Solving for the acceleration,

a =

F0 − M′R˙

and using the matter-dominated expansion R &prop; t

2/3

, we find

M′R˙

> 1.

Therefore,

a = −

< 0,

and the deceleration parameter is

q0 = −

RR¨

R˙ 2

The physical cause is mass growth: it consumes 4/3 of the Planck-scale repulsive force,

leaving −1/3 for acceleration. This result requires no dark energy. It is a falsifiable prediction

in direct conflict with the standard interpretation of Type Ia supernovae, CMB, and BAO,

which indicate q0 ≈ −0.55. The prediction q0 = +1/2 provides a decisive test of NED.

Exact Solution of the Cosmic Equation in Non-Equilibrium Dynamics: Cosmic Age, Time Variation of Physical Constants, Observational Difficulty, and a Falsifiable Prediction of Decelerating Expansion
takashi ueda
Zenodo17 Oct 2026PreprintCC BY 4.0Full textZenodo
Rapid Geographic Expansion, Decelerating Growth, and Six-Month Scenario Projections of Bundibugyo Virus Disease in the Democratic Republic of the Congo: Analysis of Situation Reports 1-61.
David Lupande Mwenebitu, Demelash Areda, Pascal Adroba +7
Viruses6 Oct 2026Peer-reviewedCC BYFull textInfectious diseaseEurope PMC
Why the Universe Decelerates: Mass Growth as the Cause of Negative Acceleration in Non-Equilibrium Dynamics
takashi ueda
Zenodo18 Oct 2026PreprintCC BY 4.0Full textZenodo
Hilbert Expansion of the coupled radiation-Euler in the equilibrium regime
Qiangchang Ju, Lei Li, Zhengce Zhang
arXiv14 Sep 2026PreprintCC BY 4.0Full textAnalysis & PDEsarXiv
Is the acceleration scale of the radial acceleration relation tracking the cosmic expansion rate?
G. T. Alcock
arXiv30 Sep 2026PreprintCC BY 4.0Full textGeneral physicsarXiv

Cite

BibTeX RIS

BibTeX

@misc{ueda2026decelerating,
  title = {{Decelerating Expansion in Non-Equilibrium Dynamics: Mass Growth, Negative Acceleration, and the Falsifiable Prediction q0 = 1/2}},
  author = {takashi ueda},
  howpublished = {Zenodo},
  year = {2026},
  month = oct,
  doi = {10.5281/zenodo.23447854},
  url = {https://zenodo.org/records/23447854},
  note = {CC BY 4.0},
}

RIS

TY  - UNPB
TI  - Decelerating Expansion in Non-Equilibrium Dynamics: Mass Growth, Negative Acceleration, and the Falsifiable Prediction q0 = 1/2
AU  - takashi ueda
PY  - 2026
DA  - 2026/10/18
PB  - Zenodo
DO  - 10.5281/zenodo.23447854
UR  - https://zenodo.org/records/23447854
AB  - We show that in Non-Equilibrium Dynamics (NED), the universe is currently decelerat-  ing, and derive the deceleration parameter  q0 =  1  2  .  This is a direct consequence of the exact cosmic equation  M′  v + M a = F0  with the exact mass scaling M &prop; R(R − ℓp). Solving for the acceleration,  a =  F0 − M′R˙  M  ,  and using the matter-dominated expansion R &prop; t  2/3  , we find  M′R˙  F0  =  4  3  > 1.  Therefore,  a = −  F0  3M  < 0,  and the deceleration parameter is  q0 = −  RR&uml;  R˙ 2  =  1  2  .  The physical cause is mass growth: it consumes 4/3 of the Planck-scale repulsive force,  leaving −1/3 for acceleration. This result requires no dark energy. It is a falsifiable prediction  in direct conflict with the standard interpretation of Type Ia supernovae, CMB, and BAO,  which indicate q0 &asymp; −0.55. The prediction q0 = +1/2 provides a decisive test of NED.
ER  -

Abstract

Related

Cite