Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-05-06
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
Designing coherent processes is essential for developing quantum information technologies. We study coherent dynamics of two spatially separated electrons in a coupled semiconductor double quantum dot (DQD), in which various two-qubit operations are demonstrated just by adjusting the gate voltages. Especially, second-order correlated coherent oscillations provide functional quantum processes for making quantum correlation of separated particles. The results encourage searching quantum entanglement in electronic devices.
Fujisawa Toshimasa
Hayashi Toshiaki
Ota Takeshi
Shinkai Gou
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