Schr"odinger's unpublished hidden-variable model in the 1944-45 debate over the "Collapse of Determinism"
Schrödinger conceived a deterministic hidden-variable model for Malus' law during a 1944-1945 debate questioning quantum mechanics' determinism. He developed rules for photon transmission and updated the hidden variable distribution after each polarizer, showing how the model reproduces quantum predictions while philosophically arguing that experimental evidence cannot disprove either determinism or indeterminism.