We prove that the spectrum of the Schrr odinger operator with periodic electric and magnetic potentials is absolutely continuous.

The Schr\"{o}dinger-Newton model is a nonlinear system obtained by coupling the linear Schr\"{o}dinger equation of canonical quantum mechanics with Poisson Newtonian mechanics. In this paper we investigate effects dark energy on time-dependent equations including new source term density $\rho_{\Lambda} = \Lambda c^2/(8\pi G)$, where $\Lambda$ cosmological constant, in addition to particle-mass ...

Within quantum chemistry, the electron clouds that surround nuclei in atoms and molecules are sometimes treated as of probability charge. These two roles, tracing back to Schr\"odinger Born, tension with one another but not incompatible. Schr\"odinger's idea nucleus an atom is surrounded by a spread-out charge density supported variety evidence from including methods used determine atomic molec...