Optimal convergence rates of the Klein-Gordon-Schrödinger system in the nonrelativistic limit

Weizhu Bao, Yong Lu, Zhiwei Zheng

In this paper, we study the Klein-Gordon-Schrödinger system in the nonrelativistic regime $\epsilon \to 0$, where $\epsilon$ is proportional to the inverse of the speed of light. We show that the…