The principle of correspondence

Abstract

The article examines the correspondence principle as a link between the classical and post-classical domains of physics, music, and philosophy. Beginning with Bohr, it analyses the transition from classical physics to quantum mechanics and distinguishes three stages: its initial formulation, its consolidation in Schrödinger’s work, and Feynman’s inversion, in which the classical world appears as a limiting case of the quantum domain. This process is compared with Schönberg’s liberation from tonality and with the transition from eidetic philosophy to phenomenology. In contrast to the infinity characteristic of classical thought, quantisation and intentionality establish limits and make it possible to recognise different levels of reality. Finally, the principle connects the natural and phenomenological scales and suggests a structural correspondence between quantum amplitudes and the transpossibilities explored by phenomenology.