Charge-based quantum computing using single donors in semiconductors
凝聚态物理
2009-11-10 v2
摘要
Solid-state quantum computer architectures with qubits encoded using single atoms are now feasible given recent advances in atomic doping of semiconductors. Here we present a charge qubit consisting of two dopant atoms in a semiconductor crystal, one of which is singly ionised. Surface electrodes control the qubit and a radio-frequency single electron transistor provides fast readout. The calculated single gate times, of order 50ps or less, are much shorter than the expected decoherence time. We propose universal one- and two-qubit gate operations for this system and discuss prospects for fabrication and scale up.
引用
@article{arxiv.cond-mat/0306235,
title = {Charge-based quantum computing using single donors in semiconductors},
author = {L. C. L. Hollenberg and A. S. Dzurak and C. Wellard and A. R. Hamilton and D. J. Reilly and G. J. Milburn and R. G. Clark},
journal= {arXiv preprint arXiv:cond-mat/0306235},
year = {2009}
}
备注
5 pages, 4 figures, updated version submitted to Physical Review B