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Could one make a diamond-based quantum computer?

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Stoneham, A. M., Harker, A. H. (Anthony Henry) and Morley, G. W.. (2009) Could one make a diamond-based quantum computer? Journal of Physics: Condensed Matter, Vol.21 (No.36). p. 364222. ISSN 0953-8984

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Abstract

We assess routes to a diamond-based quantum computer, where we specifically look towards scalable devices, with at least 10 linked quantum gates. Such a computer should satisfy the deVincenzo rules and might be used at convenient temperatures. The specific examples that we examine are based on the optical control of electron spins. For some such devices, nuclear spins give additional advantages. Since there have already been demonstrations of basic initialization and readout, our emphasis is on routes to two-qubit quantum gate operations and the linking of perhaps 10–20 such gates. We analyse the dopant properties necessary, especially centres containing N and P, and give results using simple scoping calculations for the key interactions determining gate performance. Our conclusions are cautiously optimistic: it may be possible to develop a useful quantum information processor that works above cryogenic temperatures.

Item Type: Journal Article
Subjects: Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Quantum computers
Journal or Publication Title: Journal of Physics: Condensed Matter
Publisher: Institute of Physics Publishing Ltd.
ISSN: 0953-8984
Official Date: 19 August 2009
Volume: Vol.21
Number: No.36
Page Range: p. 364222
Identification Number: 10.1088/0953-8984/21/36/364222
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Research Councils UK (RCUK), Engineering and Physical Sciences Research Council (EPSRC)
URI: http://wrap.warwick.ac.uk/id/eprint/39890

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