Dynamic Disquantization of Dirac Equation

Classical model Sdc of Dirac particle SD is constructed. SD is the dynamic system described by the Dirac equation. Its classical analog Sdc is described by a system of ordinary differential equations, containing the quantum constant h̄ as a parameter. Dynamic equations for Sdc are determined by the Dirac equation uniquely. Both dynamic systems SD and Sdc appear to be nonrelativistic. One succeeded in transforming nonrelativistic dynamic system Sdc into relativistic one Sdcr. The dynamic system Sdcr appears to be a two-particle structure (special case of a relativistic rotator). It explains freely such properties of SD as spin and magnetic moment, which are strange for pointlike structure. The rigidity function fr (a), describing rotational part of total mass as a function of the radius a of rotator, has been calculated for Sdcr. For investigation of SD and construction of Sdc one uses new dynamic methods: dynamic quantization and dynamic disquantization. These relativistic pure dynamic procedures do not use principles of quantum mechanics (QM). They generalize and replace conventional quantization and transition to classical approximation. Totality of these methods forms the model conception of quantum phenomena (MCQP). Technique of MCQP is more subtle and effective, than conventional methods of QM. MCQP relates to conventional QM, much as the statistical physics relates to thermodynamics.