Aiming at the controversies between traditional interpretations of polarization optics and mainstream theoretical explanations of the quantum entanglement CHSH experiment, this paper proposes a new physical hypothesis: the light transmission and blocking effects of polarizers are essentially the direction-matching screening effect between the intrinsic spin direction of photons and the atomic arrangement structure of the polarizer grating. Photon spin direction and the atomic barrier exhibit a 90° directional interaction switching: weak interaction and transmission when parallel, strong interaction and blocking when deflected 90° perpendicular, and recovery of transmission when rotated another 90°. The CHSH experiment, currently used to prove the existence of quantum entanglement, does not verify superluminal quantum correlation, quantum state superposition, collapse, or other theories. Its experimental phenomena entirely stem from the intrinsic opposite spin-matching property of photon pairs at the moment of generation. Like electron-positron pairs, photons naturally carry opposite spin states when excited in pairs. Polarization detection is only the screening and observation of the pre-existing spin states of photons, rather than a measurement that alters the quantum state of photons. Based on this, all polarization experiments and CHSH observations can be reasonably explained by a classical microscopic spin mechanism, avoiding the logical paradox of action-at-a-distance in quantum entanglement theory.
Jiaqing Yan (Sun,) studied this question.