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This research aims to understand the dynamic nature of dark energy and its implications for cosmological models.

March 10, 2026Open Access

The Fermionic Universe Hypothesis (FUH) and DESI DR2: Physical Origin of Dynamic Dark Energy (w0-wa) and S8 Suppression

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This research aims to understand the dynamic nature of dark energy and its implications for cosmological models.
Analyzed data from the Dark Energy Spectroscopic Instrument (DESI DR2)
Compared observations against the Lambda-CDM model
Investigated the effects of a viscous fermionic condensate on dark energy
Detected a 3.1-4.2 sigma deviation from the Lambda-CDM model
Demonstrated a dynamic evolution of dark energy characterized by parameters w0 and wa
Established that dark energy decay and S8 suppression are influenced by the medium's viscosity

Abstract

Recent data from the Dark Energy Spectroscopic Instrument (DESI DR2) indicates a 3. 1-4. 2 sigma deviation from the Lambda-CDM model, suggesting a dynamic evolution of dark energy (w0/wa). This paper demonstrates that these observations are the direct physical consequence of the viscous fermionic condensate (psi-field) proposed in the Fermionic Universe Hypothesis (FUH). We show that the observed "decay" of dark energy and S8 suppression are governed by the medium's dynamic viscosity (eta = 1. 2*10^-15 Pa·s).

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Alexander Shlyapik (Sun,) studied this question.

www.synapsesocial.com/papers/69af95ee70916d39fea4e04b — DOI: https://doi.org/10.5281/zenodo.18913527

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The Fermionic Universe Hypothesis (FUH) and DESI DR2: Physical Origin of Dynamic Dark Energy (w0-wa) and S8 Suppression

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