Paper CCXIX: Dynamic Dark Energy from Sump Relaxation

The cosmological constant is resolved by sump relaxation: brane ZPE started at ΛPlanck and is exponentially opposed by the growing sump. The relaxation timescale is Tcosmo = f2/3 bulk/H0 = 1.61 Gyr (≈H−1 0 /9). This generates dynamical dark energy with w(z) crossing −1 at zcross ≈0.4, matching DESI DR1. v2 correction: original formula Tcosmo = r0/c for σ = 500 km/s gives 253 Gyr (wrong). Correct formula uses the G2-derived f2/3 bulk relaxation fraction. Part of the One-Octonion Brane-Bulk Framework series. Anchor DOI: 10.5281/zenodo.19120873. Community: one-octonion-brane-bulk. Author: Bharathi Dasan Jagadeesan, M.D., University of Minnesota. ORCID: 0000-0002-1143-941X.

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Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-06-09
DOI
https://doi.org/10.5281/zenodo.20300390
Primary Topic
Cosmology and Gravitation Theories
Type
preprint
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Paper CCXIX: Dynamic Dark Energy from Sump Relaxation

Bharathi Jagadeesan
Zenodo (CERN European Organization for Nuclear Research)
Cosmology and Gravitation Theories
preprint

Paper CCXIX: Dynamic Dark Energy from Sump Relaxation

Bharathi Jagadeesan
preprint en

Abstract

The cosmological constant is resolved by sump relaxation: brane ZPE started at ΛPlanck and is exponentially opposed by the growing sump. The relaxation timescale is Tcosmo = f2/3 bulk/H0 = 1.61 Gyr (≈H−1 0 /9). This generates dynamical dark energy with w(z) crossing −1 at zcross ≈0.4, matching DESI DR1. v2 correction: original formula Tcosmo = r0/c for σ = 500 km/s gives 253 Gyr (wrong). Correct formula uses the G2-derived f2/3 bulk relaxation fraction. Part of the One-Octonion Brane-Bulk Framework series. Anchor DOI: 10.5281/zenodo.19120873. Community: one-octonion-brane-bulk. Author: Bharathi Dasan Jagadeesan, M.D., University of Minnesota. ORCID: 0000-0002-1143-941X.

Zenodo (CERN European Organization for Nuclear Research)
University of Minnesota System (US)
Affordable and clean energy
Cosmology and Gravitation Theories
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