### Abstract

We use quantum device modeling based on the three-dimensional self-consistent solution of the Kohn-Sham equation within the local spin density approximation (LSDA) to show that the design of quantum dot devices can be optimized for efficient spin-qubit operation. We also show that the design of a quantum point contact adjacent to laterally coupled planar quantum dots (LCPQD) can be optimized to produce maximum sensitivity to single-electron charging in the quantum dot.

Original language | English (US) |
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Title of host publication | Nanoscale Devices, Materials, and Biological Systems |

Subtitle of host publication | Fundamental and Applications - Proceedings of the International Symposium |

Editors | M. Cahay, M. Urquidi-Macdonald, S. Bandyopadhyay, P. Guo, H. Hasegawa, N. Koshida, J.P. Leburton, D.J. Lockwood, S. Seal, A. Stella |

Pages | 207-217 |

Number of pages | 11 |

Volume | PV 2004-13 |

State | Published - 2005 |

Event | Nanoscale Devices, Materials, and Biological Systems: Fundamental and Applications - Proceedings of the International Symposium - Honolulu, HI, United States Duration: Oct 3 2004 → Oct 8 2004 |

### Other

Other | Nanoscale Devices, Materials, and Biological Systems: Fundamental and Applications - Proceedings of the International Symposium |
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Country | United States |

City | Honolulu, HI |

Period | 10/3/04 → 10/8/04 |

### ASJC Scopus subject areas

- Engineering(all)

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## Cite this

Zhang, L. X., Kim, J., Melnikov, D., & Leburton, J-P. (2005). Full scale simulation of spin-qubit quantum dots and circuits. In M. Cahay, M. Urquidi-Macdonald, S. Bandyopadhyay, P. Guo, H. Hasegawa, N. Koshida, J. P. Leburton, D. J. Lockwood, S. Seal, & A. Stella (Eds.),

*Nanoscale Devices, Materials, and Biological Systems: Fundamental and Applications - Proceedings of the International Symposium*(Vol. PV 2004-13, pp. 207-217)