Study on Photon Wave-Packet Self-Constraint Model and the Origins of Confusing Phenomena in Double-Slit Interference

The double-slit interference experiment remains a classic confusing problem in quantum physics.Few studies have adopted reverse shielding logic for systematic verification.Taking fringe disappearance in path detection as an established fact,this paper designs three progressive consciousness-shielding experiments to explore the possible influence of human subjective consciousness on experimental outcomes. Separately,through combined theoretical and experimental derivation,core conclusions are drawn.Starting from the fundamental photon energy formula,three intrinsic physical properties of photons are clarified:zero adjustable amplitude,stable intrinsic frequency,and medium-dependent propagation velocity.A self-constrained wave-packet propagation model analogous to liquid-metal behavior is accordingly established.This model physically explains double-slit interference and quantum entanglement,confirming that fringe disappearance arises from instrumental physical perturbation rather than observation-induced quantum collapse. Furthermore,this paper reassesses the practical value and physical limits of the Copenhagen interpretation,and establishes a new self-consistent interpretative framework for quantum mechanical phenomena independent of mainstream theories.