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 $\hat{I}\mu \to 0$, where $\hat{I}\mu$ is proportional to the inverse of the speed of light. We show that…