Charge-based quantum computing using single donors in semiconductors
AuthorHollenberg, LCL; Dzurak, AS; Wellard, C; Hamilton, AR; Reilly, DJ; Milburn, GJ; Clark, RG
Source TitlePhysical Review B: Condensed Matter and Materials Physics
PublisherAMERICAN PHYSICAL SOC
Document TypeJournal Article
CitationsHollenberg, L. C. L., Dzurak, A. S., Wellard, C., Hamilton, A. R., Reilly, D. J., Milburn, G. J. & Clark, R. G. (2004). Charge-based quantum computing using single donors in semiconductors. PHYSICAL REVIEW B, 69 (11), https://doi.org/10.1103/PhysRevB.69.113301.
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C1 - Journal Articles Refereed
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.
KeywordsTheoretical Physics; Physical Sciences
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