Nanoscale solid-state quantum computing

A. Ardavan*, M. Austwick, S. C. Benjamin, G. A.D. Briggs, T. J.S. Dennis, A. Ferguson, D. G. Hasko, M. Kanai, A. N. Khlobystov, B. W. Lovett, G. W. Morley, R. A. Oliver, D. G. Pettifor, K. Porfyrakis, J. H. Reina, J. H. Rlce, J. D. Smith, R. A. Taylor, D. A. Williams, C. AdelmannH. Mariette, R. J. Hamers

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)


Most experts agree that it is too early to say how quantum computers will eventually be built, and several nanoscale solid-state schemes are being implemented in a range of materials. Nanofabricated quantum dots can be made in designer configurations, with established technology for controlling interactions and for reading out results. Epitaxial quantum dots can be grown in vertical arrays in semiconductors, and ultrafast optical techniques are available for controlling and measuring their excitations. Single-walled carbon nanotubes can be used for molecular self-assembly of endohedral fullerenes, which can embody quantum information in the electron spin. The challenges of individual addressing in such tiny structures could rapidly become intractable with increasing numbers of qubits, but these schemes are amenable to global addressing methods for computation.

Original languageEnglish
Pages (from-to)1473-1485
Number of pages13
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Issue number1808
Publication statusPublished - 15 Jul 2003
Externally publishedYes


  • Endohedral fullerenes
  • Global addressing
  • Nanomaterials
  • Nanotubes
  • Quantum computing
  • Quantum dots


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