New Conjecture on Polarization Mechanism and CHSH Experimental Phenomena Based on Photon Spin Matching

Aiming at the controversies over traditional polarization optics explanations and mainstream interpretations of quantum entanglement in CHSH experiments, this paper proposes a new physical conjecture: the light transmission and shielding effects of polarizers essentially result from the direction-matching screening effect between the intrinsic spin direction of photons and the grating structure of polarizers. The current CHSH experiments, which are used to prove the existence of quantum entanglement, do not confirm any theories such as non-local quantum correlation, quantum state superposition, or collapse. All experimental phenomena arise entirely 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 generated in pairs. Polarization detection is only a screening observation of the existing spin states of photons, rather than a measurement that alters the quantum states of photons. Based on the classical microscopic spin mechanism, all polarization experiments and CHSH experimental observations can be explained consistently, avoiding the logical paradox of non-local action in quantum entanglement theory.