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math-ph2003★ 17 cited
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.…
cond-mat.mes-hall2003
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…