Abstract

Modern theoretical physics consists of separate branches with their own foundations. Physics branch foundations consist of appropriate system of statements, which define basic ideal entities of a branch. The few of them are called “primary ideal objects”. Physical theory of a phenomenon is based on secondary ideal object, which is built of PIOs with interactions between them). The result is the object-centred two level hierarchical structure of physical theories. PBF has a definite structure, which contains “theoretical ideal objects part” with stratums of physical model and mathematical motion description, and “operational part” with technical operations of preparing. PBF of contemporary quantum mechanics can be represented as a set of clear postulates, which fill this structure with concrete content. This set consists of 4 subsets: Schrödinger’s postulates, which introduce the mathematical image of the state in the form of wave function ΨA and Schrödinger’s motion equation; Born’s postulates, which introduce probability into the concept of state; Heisenberg’s procedure of quantization; postulate of identity of quantum particles for many-particle systems.