Lindblad approximation and spin relaxation in quantum electrodynamics
Mathematical Physics
2020-06-24 v1 math.MP
Abstract
This article is concerned with the time evolution of a -spin particle in a constant external magnetic field with the quantized electromagnetic field (photons). We derive a Lindblad (or GKLS) type approximation of the spin dynamics together with a precise control of the error coming from this approximation. The error term is bounded by where is the coupling constant of the spin-photon interaction. The point here is the uniformity in time of this error control.
Cite
@article{arxiv.1911.10481,
title = {Lindblad approximation and spin relaxation in quantum electrodynamics},
author = {Laurent Amour and Jean Nourrigat},
journal= {arXiv preprint arXiv:1911.10481},
year = {2020}
}