I want to re-check the double-slit experiment in which each slit’s edges are fabricated from different materials (e.g., gold in contrast with aluminum coatings, fused silica in contrast with z-cut quartz liners) to test whether microscopic boundary-field differences can induce path distinguishability and alter interference. Using both attenuated laser light and heralded single photons, I want to measure fringe visibility V and phase ϕ under baseline, material-swapped, and tagged conditions. We need to introduce polarization and spectral path tags to vary which-path distinguishability D, verify the complementarity relation V**2+D**2≤1, and demonstrate fringe recovery via a quantum eraser.

I want to check if the material changes alone but not destroy interference, and if visibility loss is directly tied to distinguishability, consistent with quantum theory and inconsistent with a pure one-slit-per-photon scattering model.

I have no possibility to do this "test" now here, would someone be interested to check it out?

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