Four-space formulation of Dirac's equation

A. B. Evans

Vu B Ho

Having shown in our previous works that the real-valued Schrodinger wave equation can be used to find mathematical functions to construct spacetime structures of quantum particles, in this work, we will discuss the possibility to formulate a real-valued Dirac equation in which all physical objects and all differential operators that are used to describe the dynamics of a particle are real quantities and, furthermore, since solutions to the Dirac equation are wavefunctions that have four components, it is possible to suggest that solutions to the real-valued Dirac equation should be interpreted as a parameterisation of 3-dimensional differentiable manifolds which are embedded submanifolds of the Euclidean space R^4.

Alexander S. Lukyanenko, Inna Lukyanenko

A path integral representation of the evolution operator for the four-dimensional Dirac equation is proposed. A quadratic form of the canonical momenta regularizes the original representation of the path integral in the electron phase space. This regularization allows one to obtain a representation of the path integral over trajectories in the configuration space. This form of the path integral is useful for the formulation of perturbation theory in an external electromagnetic field.

Stefano De Leo, Khaled Abdel-Khalek

In order to obtain a consistent formulation of octonionic quantum mechanics (OQM), we introduce left-right barred operators. Such operators enable us to find the translation rules between octonionic numbers and 8×8 real matrices (a translation is also given for 4×4 complex matrices). We develop an octonionic relativistic free wave equation, linear in the derivatives. Even if the wave functions are only one-component we show that four independent solutions, corresponding to those of the Dirac equation, exist.