Coupling and Decoupling: A Universal Cross‑Scale Mechanism Covering Quantum Effects, Celestial Evolution and the Origin of Life

Traditional fundamental physics adopts separate modeling for microscopic quantum vacuum effects, high‑energy particle collisions, black hole celestial evolution and the origin of life, lacking a unified underlying action mechanism that can run through all scales and physical scenarios. This paper puts forward the dynamic cycle of coupling and decoupling as the only universal evolutionary mechanism of the universe, takes the conservation of total energy of closed cosmic system as the unique axiom, and uniformly interprets the homologous underlying laws of microscopic quantum phenomena, high‑energy physical processes, large‑scale celestial circulation and planetary life evolution. All known physical phenomena are essentially determined by the disturbance state of local systems. When external disturbance breaks through the critical threshold, decoupling happens, stable matter structures disintegrate and particle bodies are released. After disturbance weakens, the system spontaneously tends to a steady state and proceeds coupling to reconstruct stable material structures. The Schwinger effect, dynamic Casimir effect, Unruh effect, particle generation triggered by photon collision, quantum anomalous phenomena, particle reconstruction in high‑energy accelerators, material circulation at black hole horizons and iterative self‑organization of life in aqueous environments are all specific manifestations of the coupling‑decoupling mechanism under different scales and boundary conditions. This paper does not rely on spacetime geometric correction or hypothetical new fundamental forces, and realizes cross‑scale physical unification through a single unified mechanism. Supplementary mathematical deduction marked [S1]–[S9] is attached to quantify the interaction between particle bodies and dark‑energy attribute, and multiple observable and falsifiable physical predictions are proposed.