Abstract Young’s double slit experiments, which represent the mystery of quantum mechanics, have been interpreted by quantum probability waves and de Broglie-Bohm’s trajectory/pilot waves. To study in detail, the double slit experiments are extended to the cross double slit experiments. We argue that an interpretation must be able to explain all of the double slit and cross double slit experiments consistently. To test the interpretations, the comprehensive double slit experiments have been performed, which challenge both the wave interpretation and the trajectory interpretation. The cross double slit experiments and comprehensive double slit experiments provide a new tool for studying the mystery of double slit, wave-particle duality, complementarity principle, wave theory and trajectory theory. In this article, we review the cross double slit experiments and comprehensive double slit experiments, and report new experiments.
Abstract Young’s double slit experiments express the mystery of quantum mechanics. To explore the mystery, varieties of the double slit and cross-double slit experiments were performed. In this article, we show novel mystery phenomena: (1) the characteristics of the interference patterns of the double slit and cross-double slit experiments depend on the orientation of the diaphragm used in the experiment, specifically on which axis the diaphragm rotates around, the rotating angle and how to rotate, clockwise or counterclockwise; and (2) in the cross-double slit experiments, the characteristics of the interference patterns also depend on which slit photons pass through; (3) unlike the regular double slit and regular cross-double slit experiments, in which the interference patterns are along the straight line, the interference patterns of the double slit/cross-double slit experiments can be along curve, and the curvatures depend on the orientations of the diaphragms of the double slit/cross-double slit. Those experiments show more mysteries of the double slit and cross-double slit experiments and provide comprehensive data for developing/testing a theoretical model.
Young's double slit experiments representing the mystery of quantum mechanics have been descripted by wave theories. To study the mystery, the double slit experiments were extended to the cross-double slit experiments. A description should explain all the double slit and cross-double slit experiments consistently. To test the wave description, the two postulates are proposed, which state that before passing through the double slit and before landing on the detector, photons behave as particles, but not as waves. To test the two postulates, the comprehensive double slit/cross-double slit experiments are proposed and performed. By placing shields and/or blockers near the detector/screen, the comprehensive double slit/cross-double slit experiments show that the fringes are created independently and partially, which discloses the particle nature of photons in the double slit/crossdouble slit experiments and violates the wave descriptions. The comprehensive double slit/cross-double slit experiments provide the comprehensive phenomena for developing theoretical model to study the mystery of double slit, complementarity principle, wave-particle duality, and wave theory of light.