40 citations · 72 across the 6 of their papers we have counts for
8 papers
On-diagonal singularities of the Green functions for Schroedinger operators
Jochen Bruening, Vladimir Geyler, Konstantin Pankrashkin
We investigate the behavior of the Green functions of Schroedinger operators near the diagonal. The only non-trivial cases, where the on-diagonal singularities are non-zero and do…
Geometrical phase for a three-dimensional anisotropic quantum well
V. A. Geyler, A. V. Shorokhov
A three-dimensional anisotropic quantum well placed in an adiabatically precessing uniform magnetic field is considered and an explicit formula for the Berry phase is obtained. To…
Spectral properties of a short-range impurity in a quantum dot
J. Bruening, V. Geyler, I. Lobanov
The spectral properties of the quantum mechanical system consisting of a quantum dot with a short-range attractive impurity inside the dot are investigated in the zero-range limit.…
Spectral diagrams of Hofstadter type for the Bloch electron in three dimensions
J. Bruening, V. V. Demidov, V. A. Geyler
Flux-energy and angle-energy diagrams for an exact three-dimensional Hamiltonian of the Bloch electron in a uniform magnetic field are analyzed. The dependence of the structure of…
Large gaps in point-coupled periodic systems of manifolds
J. Bruening, P. Exner, V. A. Geyler
We study a free quantum motion on periodically structured manifolds composed of elementary two-dimensional "cells" connected either by linear segments or through points where the t…
The geometric structure of the Landau bands
J. Bruening, S. Yu. Dobrokhotov, V. A. Geyler +1
We have proposed a semiclassical explanation of the geometric structure of the spectrum for the two-dimensional Landau Hamiltonian with a two-periodic electric field without any ad…