10 citations · 27 across the 5 of their papers we have counts for
5 papers
The Fourier U(2) Group and Separation of Discrete Variables
Kurt Bernardo Wolf, Luis Edgar Vicent
The linear canonical transformations of geometric optics on two-dimensional screens form the group , whose maximal compact subgroup is the Fourier group ; this inc…
Quantum Vacuum Energy in Graphs and Billiards
L. Kaplan
The vacuum (Casimir) energy in quantum field theory is a problem relevant both to new nanotechnology devices and to dark energy in cosmology. The crucial question is the dependence…
Character Expansions in Physics
A. B. Balantekin
Expanding products of invariant functions of a group element as a series in the basis of characters of the irreducible representations of a group is widely used in many areas of ph…
Seniority in quantum many-body systems
P. Van Isacker
The use of the seniority quantum number in many-body systems is reviewed. A brief summary is given of its introduction by Racah in the context of atomic spectroscopy. Several exten…
Two interacting electrons in a magnetic field: comparison of semiclassical, quantum, and variational solutions
Tobias Kramer
The quantum mechanical many-body problem is rarely analytically solvable. One notable exception is the case of two electrons interacting via a Coulomb potential in a uniform magnet…