In this paper, we study the following nonlinear Schr\"odinger-Poisson type equation \begin{ equation*} \begin{ cases} -\varepsilon^2\Delta u+V(x)u+K(x)\phi u=f(u)&\text{ in}\ \mathbb{ R}^3,\\ -\varepsilon^2\Delta \phi=K(x)u^2&\text{ in}\ \mathbb{ R}^3, \end{ cases} \end{ equation*} where $\varepsilon>0$ is a small parameter, $V: \mathbb{ R}^3\rightarrow \mathbb{ R}$ is a continuous potential and $K: \mathbb{ R}^3\rightarrow \mathbb{ R}$ is used to describe the electron charge. Under suitable assumptions on $V(x), K(x)$ and $f$, we prove existence and concentration properties of ground state solutions for $\varepsilon>0$ small. Moreover, we summarize some open problems for the Schr\"odinger-Poisson system.
Categories: math.AP