The essence and origin of quantum theory

Abstract: According to De Broglie's idea of analogy, the relation between quantum mechanics and classical mechanics is similar to that between wave optics and geometric optics, we have given the quantum equation of the gravitational field intensity $E_g(\vec{r},t)$ for matter particles, since the gravitational field intensity $E_g(\vec{r},t)$ relatives to the particle position distribution function $\psi(\vec{r},t)$, the quantum equation convert into the Schrodinger equation. In addition, we have further studied the essence and origin of quantum theory, and obtained some new results.