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.
@article{arxiv.0905.0805,
title = {Correlated coherent oscillations in coupled semiconductor charge qubits},
author = {Gou Shinkai and Toshiaki Hayashi and Takeshi Ota and Toshimasa Fujisawa},
journal= {arXiv preprint arXiv:0905.0805},
year = {2009}
}