Discussion on Theoretical Structure between Quantum Physics and Newtonian Mechanics

In 1905, Einstein established relativity under the condition of denying the absolute space-time valid in Newtonian mechanics. In those days, the quantum theory was also established by accepting De Broglie’s hypothesis of matter wave, regardless of the causality of Newtonian mechanics. It has thus caused some fundamental problems unsolved in the quantum theory, as the causality of quantum mechanics for Newtonian mechanics is unknown. In that situation, it was recently revealed that the quantum theory is reasonably established in accordance with the causality for Newtonian mechanics, and also that the hypothesis of De Broglie is theoretically valid. The fundamental problems unsolved for a long time were also reasonably elucidated then. Further, we then found that a micro particle has an imaginary mass in a local space, or its behavior depends on an imaginary time. In the present work, we thus review fundamental problems in quantum mechanics from a viewpoint of the theoretical structure of physics in accordance with the causality for Newtonian mechanics.