56 citations · 157 across the 13 of their papers we have counts for
13 papers
Spectral Singularities and Zero Energy Bound States
W. D. Heiss, R. G. Nazmitdinov
Single particle scattering around zero energy is re-analysed in view of recent experiments with ultra-cold atoms, nano-structures and nuclei far from the stability valley. For non-…
Resonance scattering and singularities of the scattering function
W. D. Heiss, R. G. Nazmitdinov
Recent studies of transport phenomena with complex potentials are explained by generic square root singularities of spectrum and eigenfunctions of non-Hermitian Hamiltonians. Using…
Tilted Rotation and Wobbling Motion in Nuclei
W. D. Heiss, R. G. Nazmitdinov
The self-consistent harmonic oscillator model including the three-dimensional cranking term is extended to describe collective excitations in the random phase approximation. It is…
Higher Order Effects in the Dielectric Constant of Percolative Metal-Insulator Systems above the Critical Point
W. D. Heiss, D. S. McLachlan, C. Chiteme
The dielectric constant of a conductor-insulator mixture shows a pronounced maximum above the critical volume concentration. Further experimental evidence is presented as well as a…
Tri-axial Octupole Deformations and Shell Structure
W. D. Heiss, R. G. Nazmitdinov, R. A. Lynch
Manifestations of pronounced shell effects are discovered when adding nonaxial octupole deformations to a harmonic oscillator model. The degeneracies of the quantum spectra are in…
Orbital Magnetism in Small Quantum Dots with Closed Shells
W. D. Heiss, R. G. Nazmitdinov
It is found that various kind of shell structure which occurs at specific values of the magnetic field leads to the disappearance of the orbital magnetization for particular magic…