Topological Phase Transitions as Fundamental Dynamics of Spacetime

We establish topological phase transitions (sphere ↔ torus) as the fundamental mechanism governing spacetime dynamics. Demonstrating that quantum hydrodynamic equations emerge from geometric evolution laws, we prove that sphere-torus oscillations represent topological defects inspacetime structure. Experimental verification via superconducting quantum simulation confirmsthis model, revealing a profound connection between genus transitions and quantum turbulence. Thetheory predicts measurable gravitational wave signatures from early-universe topological fluctuations.