Charge-based quantum computing using single donors in semiconductors

Hollenberg, L. C. L., Dzurak, A. S., Wellard, C., Hamilton, A. R., Reilly, D. J., Milburn, G. J. and Clark, R. G. (2004) Charge-based quantum computing using single donors in semiconductors. Physical Review B, B69 11: 113301-1-113301-4. doi:10.1103/PhysRevB.69.113301

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Author Hollenberg, L. C. L.
Dzurak, A. S.
Wellard, C.
Hamilton, A. R.
Reilly, D. J.
Milburn, G. J.
Clark, R. G.
Title Charge-based quantum computing using single donors in semiconductors
Journal name Physical Review B   Check publisher's open access policy
ISSN 1098-0121
Publication date 2004-03-11
Sub-type Article (original research)
DOI 10.1103/PhysRevB.69.113301
Open Access Status File (Publisher version)
Volume B69
Issue 11
Start page 113301-1
End page 113301-4
Total pages 4
Editor P. D. Adams
Place of publication United States
Publisher The American Physical Society
Collection year 2004
Language eng
Subject C1
240203 Condensed Matter Physics - Electronic and Magnetic Properties; Superconductivity
780102 Physical sciences
01 Mathematical Sciences
02 Physical Sciences
09 Engineering
Abstract Solid-state quantum computer architectures with qubits encoded using single atoms are now feasible given recent advances in the atomic doping of semiconductors. Here we present a charge qubit consisting of two dopant atoms in a semiconductor crystal, one of which is singly ionized. Surface electrodes control the qubit and a radio-frequency single-electron transistor provides fast readout. The calculated single gate times, of order 50 ps 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.
Keyword Physics, Condensed Matter
Cooper-pair Box
Electron-transistor
State
Readout
Qubits
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 04:19:09 EST