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Theoretical analysis demonstrates unified cosmic evolution through primordial tensor field decomposition, indicating a viable resolution to the H0 and S8 tensions.
We present a self-consistent, coordinate-invariant framework that unifies inflation, darkmatter, and dark energy via a single primordial Rank-2 tensor field (Bµν ). By decompos-ing this field into high-frequency (fast) and low-frequency (slow) modes during the post-inflationary epoch, we show that particle production via parametric resonance naturallypopulates a dark matter fluid characterized by bulk viscosity (ζ). Integrating this micro-physical source directly into the second-order Israel-Stewart transport equations guaranteessubluminal causality while offering a simultaneous resolution to the H0 and S8 cosmologicaltensions without fine-tuned vacuum parameters
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Luis German Garcia Guerrero (2026) studied this question.