Quantum corrals, eigenmodes, and quantum mirages in s-wave superconductors.
We study the electronic structure of magnetic and nonmagnetic quantum corrals embedded in two-dimensional s-wave superconductors. We demonstrate that a quantum mirage of an impurity bound state is projected from the occupied into the empty focus of a nonmagnetic quantum corral via the excitation of the corral's eigenmodes. We show that quantum corrals provide a new tool for manipulating the interaction between magnetic impurities by exciting oscillations in the corral's impurity potential. Finally, we discuss the form of eigenmodes in magnetic quantum corrals.
Morr
Dirk K
DK
Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USA.
Stavropoulos
Nikolaos A
NA