Experimental Design for Measuring the Time Delay of Interference Fringe Switching Induced by Observation System Complexity

Experimental Design for Measuring the Time Delay of Interference Fringe Switching Induced by Observation System Complexity This paper proposes an experimental scheme to measure the relationship between the complexity of the observation system and the time delay in double-slit interference. Traditional quantum mechanics (Copenhagen interpretation) holds that wave function collapse induced by observation is an instantaneous process. Parallel Intersection Studies (PIS) predicts instead that observation is a temporal process: the change of interference fringes involves a measurable time delay Δt. The experiment uses femtosecond laser synchronization, polarizer/coil switching, and streak camera capture to measure the time delay Δt of fringe switching after the observation apparatus intervenes. The experiment is divided into three levels, with precision improving from nanosecond to femtosecond scales. In addition, this paper proposes a "cyclic averaging mode" as a low-cost replication pathway: through repeated cyclic measurements, statistical averaging is used to trade for time resolution, enabling ordinary university physics laboratories to make preliminary judgments on Δt. Core criteria: First layer — whether Δt exists. If Δt is confirmed to be 0 (measurement precision better than theoretical expected magnitude), PIS is falsified; if Δt exists, the existence of parallel spaces is confirmed. Second layer — whether Δt varies with observation system complexity. To our knowledge, no systematic study has yet taken the observation apparatus's own complexity as an independent variable to measure its correlation with time delay. The theoretical basis of this experimental scheme (PIS axiom system and energy formula) is described in the companion preprint "Parallel Intersection Studies: A Unified Theoretical Framework Based on Scale Relativity and Parallel Relativity". V1.2: Added distinction from existing work (decoherence, objective collapse models, quantum eraser), added error budget table, added quantitative definition of observation system complexity, added cyclic averaging mode, revised the "first experiment" claim to a more conservative formulation, unified time scale notation, added blind test operational detail, added upgrade logic for three-level scheme, added cost estimation ranges, and added reference list. Previous version files retained for traceability.