Non-separable wave evolution equations in quantum kinetics
Abstract
A non-separable wave-like integro-differential equation for the time evolution of the Wigner distribution function in phase space is educed from the corresponding separable kinetic equation. It is shown that it leads to non-local dispersion effects that may involve complex group velocities and also display non-unitary features as entropy production. By employing the quantum hydrodynamical description a non-local evolution wave equation is also derived by synthesizing the Hamilton-Jacobi equation with that of continuity, which predicts the generation of quadrupole quantum effects in the propagation of the spatial probability density. Extension of the formalism for a boson scalar field is also presented along with a brief commentary on the issue of irreversibility.
Cite
@article{arxiv.2403.12974,
title = {Non-separable wave evolution equations in quantum kinetics},
author = {C Dedes},
journal= {arXiv preprint arXiv:2403.12974},
year = {2024}
}