Electron Tunneling Effect and Energy Gradient Model (EGM 2.0)

In traditional quantum mechanics, electron tunneling is described as a quantum penetration effect through a potential barrier. This paper proposes a new physical framework based on the Energy Gradient Model 2.0 (EGM 2.0), which reinterprets the tunneling phenomenon from the perspective of electron cloud deformation and energy gradient driving. Experiments show that when an external potential is applied to a stable electronic system, the electron cloud distribution is reconstructed without destroying the basic electronic structure. A clear energy threshold exists: below the threshold, only electron cloud deformation and spatial rearrangement occur, which corresponds to the tunneling effect; above the threshold, the original quantum state is destroyed, leading to quantum transition. The EGM 2.0 model unifies the mechanism of electron tunneling and quantum transition, providing a consistent classical-quantum physical explanation.