The Delayed-Choice Experiment

Abstract

Abstract The mystery of Zeilinger’s delayed-choice experiment is solved via Information Invariance & Continuity as justified by the relativity principle (NPRF + h). Accordingly, NPRF + h is a four-dimensional (all-at-once) adynamical global constraint that constrains the relationship between the outcomes at detector D2 (fixed) and the position of detector D1 (controlled by the experimentalist). So, it is neither the case that the experimentalist’s choice of where to locate D1 ‘caused’ the outcomes at D2 nor the case that the outcomes at D2 ‘caused’ the experimentalist to choose a particular location for D1. The mystery of the delayed-choice experiment is therefore seen to be just another example of misplaced constructive bias. The double-slit experiment is explained using the qubit Hilbert space, and the Hilbert space for the triple-slit experiment is constructed from the qubit Hilbert space per the locality axiom for quantum mechanics reconstruction.