Regensburg 2004 – scientific programme

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TT: Tiefe Temperaturen

TT 8: Postersitzung I: Supraleitung

TT 8.37: Poster

Monday, March 8, 2004, 14:30–19:00, Poster A

Mirage phenomena in quantum corrals of s-wave superconductors — •Markus Schmid and Arno P. Kampf — Theortical Physics III, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86135 Augsburg

We investigate the local pairing amplitude and the local density of states (LDOS) for an s-wave superconductor in an elliptic quantum corral. Using a T-matrix analysis we explore the spatial structure of the LDOS in the presence of a single non-magnetic impurity and observe a variety of quantum mirage phenomena. In particular, we discuss mirage effects for localized impurity bound states and analyze the interference patterns for the scattering processes from two impurities in the quantum corral.