Under the spell of BCS-electron–phonon theory [M. Tinkham, Introduction to
Superconductivity, 2nd ed.(McGraw Hill, New York, 1996)], during the last 6 years …

The extension of quantum theory to time-varying space domains is often challenging, since
domain evolution frequently results in non-autonomous and non-adiabatic evolution of …

This study aims to use hydrogenic orbitals within an analytic and numeric parameter-free
truncated-matrix method to solve the projected Schrödinger equation of some Helium-like …

We extend previous work, applying elementary matrix mechanics to one-dimensional
periodic arrays (to generate energy bands), to two-dimensional arrays. We generate band …

The approximate solution to the Schrödinger equation of exotic doubly muonic helium-like
systems has been obtained using a simple matrix method based on hydrogenic s-states …

Calculation of He atomic energy levels using the first order perturbation theory taught in the
Basic Quantum Mechanics course has led to relatively large errors. To improve its accuracy …

We use a simple system, the electron configuration in a hydrogen-like atom, to demonstrate
the importance of using a complete basis set to provide a proper quantum mechanical …

We show how to visualize the process of diagonalizing the Hamiltonian matrix to find the
energy eigenvalues and eigenvectors of a generic one-dimensional quantum system …

Two coupled Schrödinger equations are used to calculate excited states of atomic helium.
Using product state functions for the two-electron state, the shooting method is used to …

Schrodinger equation for system of two mobile spinless nucleus with Z 0= 2 and four
electrons (4 He 2-dimer) has been solved in the framework of exact diagonalization …