It is generally believed that the old quantum theory, as presented by Niels Bohr in 1913, fails
when applied to few electron systems, such as the H2 molecule. Here we review recent …

Highly compact wavefunctions with a clear physical meaning for the He atom and He-like
isoelectronic ions for Z= 1–10 are written as a symmetrized product of exp [(ar+ br 2)/(1+ r)] …

We apply the analytically solvable model of two electrons in two orbitals to diradical
molecules, characterized by two unpaired electrons. The effect of the doubly occupied and …

We present a simple interpolation formula using dimensional limits D= 1 and D=∞ to obtain
the D= 3 ground-state energies of atoms and molecules. For atoms, these limits are linked …

An arc with ablating graphite anode is used to produce nanoparticles. At the high anode
temperatures taking place in the arc, graphite sublimates almost exclusively in the form of …

Solving the Kratzer oscillator in diatomic molecules: an algebraic approach based on the so(2,1)
Lie algebra - IOPscience Skip to content IOP Science home Accessibility Help Search Journals …

Three-body problems in atomic and molecular quantum mechanics, comprising one electron–
two nuclei and two electron–one nucleus, are studied from their Schrödinger–Born …

A dimensional-scaling method for the calculation of excited states of multielectron atoms is
introduced. By including the principle and orbital quantum numbers in the dimension …

The Schrödinger equation with a pertaining two-center mean field potential scheme is
solved by the quasi-analytical ansatz methodology. The ground-state wave function and the …

Desde que se observó por primera vez hace más de un siglo, el estudio de la
superconductividad ha sido uno de los campos más activos en la investigación científica …