METHOD FOR PREDICTING NONPERTURBATIVE PROPERTY VALUE BY RELATIVISTIC QUANTUM ELECTROMAGNETICS

摘要

PPROBLEM TO BE SOLVED: To provide a method for automatically taking-in the action of substance in a strong electromagnetic field and the effects of middle distance correlation and long distance correlation, where high-order electronic correlation plays an important role, and nonperturbatively and relativistically calculating the basic value of a substance characteristic by using the quantum theory of a field. PSOLUTION: The equation of the field is derived with the Lagrangian density of quantum electromagnetics as a sole start point. Separation is performed into classical field calculation and quantum field calculation by using a projection operator. A substance structure is brought into the classical field (an average field), where the solution is taken into the quantum field calculation by using a single point function. The quantum field gives quantum correction from the average of the classical field. The quantum field is given by a pair of equations through the use of a functional quantum method. The equations are separated into the propagation function of an electron, a positive electron, or a hole, etc., each self-energy, and the self-energy or propagation function of a photon, so as to be given by specific integration displaying. The method is the one for self-consistently processing the equation group and precisely and nonperturbatively calculating the substance characteristic including the high-order correlation. PCOPYRIGHT: (C)2006,JPO&NCIPI