Recent advances in exciton based quantum information processing in quantum dot nanostructures

Details Recent advances in exciton based quantum information processing in quantum dot nanostructures Recent advances in exciton based quantum information processing in quantum dot nanostructures

2005-05-30

arxiv.org/abs/cond-mat/0505731v3

New Journal of Physics 7, 184 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

37 pages, 15 figures, submitted to New Journal of Physics, focus issue on Solid State Quantum Information, added references

Scientific paper

10.1088/1367-2630/7/1/184

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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