Ground state solutions for a class of nonlinear fractional Schrödinger-Poisson systems with super-quadratic nonlinearity

We consider the existence of ground state solutions for a class of nonlinear fractional Schrödinger-Poisson systems of the form {(−Δ)su+u+ϕu=f(u),inR3,(−Δ)tϕ=u2,inR3,where 03. By adopting a direct approach and the Pohozaev identity, we prove that this system possesses ground state solutions with a mild assumption on f with lim|u|→∞∫0uf(t)dt|u|3=∞.