No abstract

A matrix model to describe quantitatively certain physical properties of quantum systems of two-band eigenvalue spectrum is proposed. This formulation is a generalization of Wannier-type representations and is applicable to various situations where physical properties are defined in tensor form.

No abstract

The optical potential of an attractive nonrelativistic electron gas interacting with nuclear matter is determined on the basis of the concept of degenerate Fermi gas. In fact, the involved electrons are treated as three-dimensional quantum harmonic oscillators confined at the surface of a spherical (approximately ideal) potential well. Within this picture, the Fermi velocity is calculated as well as the spatial electron density at the surface of the potential well and the attractive force between the electron gas and the nuclear matter. In addition, considerations related to the Lippmann–Schwinger model are made.

No abstract

No abstract

No abstract

No abstract