Dark Energy as Substrate Relaxation and Coherence Field Expansion in the MID/QC Framework

This paper presents a substrate‑level explanation for cosmic acceleration within the MID/QC framework. Instead of invoking a cosmological constant or exotic dark‑energy fluid, the model interprets late‑time acceleration as a natural consequence of relaxation dynamics in the MID substrate and the expansion of large‑scale coherence fields. These processes modify metric behavior without requiring new particles, fine‑tuned constants, or vacuum‑energy assumptions. The MID/QC approach reframes dark energy as an emergent effect of substrate tension redistribution and coherence‑field evolution, offering a physically grounded alternative to ΛCDM. The model predicts dynamic (rather than constant) acceleration, a natural resolution to the Hubble tension, and modified large‑scale structure growth, unifying dark‑energy behavior with the same substrate dynamics that govern gravity and quantum coherence.