The Equation of Motion for Hybrid Flow in Quantum Kinetics
Viktoras Rimsha, Laimontas Rimsha
Abstract
This paper extends the recently proposed analytical framework of quantum phase space, where coordinate and momentum representations are unified into a strictly positive joint distribution. Transitioning from stationary geometric structures to non-stationary processes, we introduce the concept of time-dependent hybrid flows. We derive the fundamental equation of motion governing the temporal evolution of these flows in quantum kinetics. Unlike traditional phase-space approaches (such as the Wigner-Liouville equation) which suffer from negative probability densities and highly non-local differential terms, the hybrid flow equation operates as a local balance between real, experimentally observable coordinate and momentum quantum probability currents. The mathematical properties of the equation, including strict positivity, total probability conservation, and spatial-momentum orthogonality, are analyzed. Finally, we discuss the engineering and physical domains where this formulation provides crucial computational advantages, particularly in nano-barrier charge transport and quantum optics.