Unified Torsion: The Geometric Origin of Matter, Forces, and the Quantum Vacuum

We develop a unified theoretical framework in which all matter particles, fundamental forces, and the structure of the quantum vacuum emerge from a single underlying principle: the dynamics of a fundamental torsional field τ^µ inherent to spacetime geometry. Topological solitons of τµ are identified with matter particles, with mass, electric charge, and spin emerging as topological invariants. Gauge forces arise as collective excitations of the torsional vacuum, while gravitation emerges as a large-scale manifestation of torsional spacetime deformation. The model naturally leads to predictive observational signatures, including cosmic microwave background (CMB) birefringence and specific gravitational wave effects. We systematically develop the classical and quantum theory of torsion, fix the fundamental parameters by first principles and observations, construct the full unified Lagrangian, and demonstrate how torsional entropy growth leads to the emergence of the arrow of time. This approach provides a complete geometric unification of all known physical phenomena.