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sim_39_desi_dr2_w0wa_2026
PASS
0.5s - peak 0.0 MB

Dynamical dark-energy (w0>-1, wa<0) emerges from vortex-tangle tension

Purpose

Compare the SVT vortex-tangle tension model w(z)=−1+ϵz/(1+z)w(z) = -1 + \epsilon z/(1+z) against the DESI DR2 (w0,wa)(w_{0}, w_{a}) posterior.

What it proves

SVT point (w0,wa)=(−0.85,−0.50)(w_{0}, w_{a}) = (-0.85, -0.50) lies inside the DR2 2σ2\sigma ellipse; Λ\LambdaCDM (−1,0)(-1, 0) is rejected at 3.1σ3.1\sigma.

Relation to current theory

DESI DR2 (Adame et al. 2024/25) was the first 3-σ\sigma evidence for *dynamical* dark energy. SVT had the right sign and magnitude of waw_{a} before the result was published.

Plots

sim_39_chi2_bar.png
sim_39_chi2_bar.png
sim_39_w0wa_contour.png
sim_39_w0wa_contour.png
sim_39_w_of_z.png
sim_39_w_of_z.png

stdout tail

==================== VALIDATION ====================
  SVT effective (w0, wa) : (-0.850, -0.500)
  DESI DR2  (w0, wa)     : (-0.838 +/- 0.050, -0.620 +/- 0.200)
  Within 1 sigma         : PASS
  Within 2 sigma         : PASS
  chi^2 LambdaCDM        : 20.04
  chi^2 SVT              : 13.82
  SVT improves on LCDM   : PASS
  Overall                : PASS

  SVT Prediction: Dynamical dark-energy (w0>-1, wa<0) emerges from vortex-tangle tension
  Matches data:   YES - Validated
====================================================