Recent advances in exciton based quantum information processing in quantum dot nanostructures
Krenner, H. J. · Stufler, S. · Sabathil, M. · Clark, E. C. · Ester, P. · Bichler, M. · Abstreiter, G. · Finley, J. J. · Zrenner, A.
Original · EN
Recent experimental developments in the field of semiconductor quantum dot spectroscopy will be discussed. First we report about single quantum dot exciton two-level systems and their coherent properties in terms of single qubit manipulations. In the second part we report on coherent quantum coupling in a prototype "two-qubit" system consisting of a vertically stacked pair of quantum dots. The interaction can be tuned in such quantum dot molecule devices using an applied voltage as external parameter.
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