Mirages, anti-mirages, and further surprises in quantum corrals with non-magnetic impurities

Abstract

We investigate the local density of states (LDOS) for non-interacting electrons in a hard wall ellipse in the presence of a single non-magnetic scattering center. Using a T-matrix analysis we calculate the local Green's function and observe a variety of quantum mirage effects for different impurity positions. Locating the impurity near positions with LDOS maxima for the impurity free corral can either lead to a reduction or an enhancement of the LDOS at the mirror image point, i.e. a mirage or anti-mirage effect, or even suppress LDOS maxima in the entire area of the corral.

arXiv comment6 pages, 7 figures

Cited by in corpus (8)

• Impurities, Quantum Interference and Quantum Phase Transitions in s-wave superconductors
• Single-Atom Gating of Quantum State Superpositions
• Spatially dependent Kondo effect in Quantum Corrals
• Quantum Imaging and Selection Rules in Triangular Quantum Corrals
• Quantum correlations in nanostructured two-impurity Kondo systems
• Mirage phenomena in superconducting quantum corrals
• Nanoscale Impurity Structures on the Surface of $d_{x^2-y^2}$-wave Superconductors
• Miraging a Majorana