Efficient quantum computation within a disordered heisenberg spin chain

Chiu Fan Lee, Neil F Johnson

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The possibility of efficient quantum computation, using a disordered Heisenberg spin-chain with 'always-on' couplings was discussed. In the proposed scheme, such disorder occurs naturally in naturally in nanofabricated systems. It was observed that the new approach are relevant to a range of quantum computing implementations and should stimulate experimentalists to explore less mature fabrication technologies. The result show that an arbitrary two-qubit gate could be implemented using just three relaxations of a controlled qubit, which amounts to switching the on-site energy terms at most 21 times.

Original languageEnglish (US)
Article number052322
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume70
Issue number5 A
DOIs
StatePublished - Nov 2004
Externally publishedYes

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quantum computation
disorders
fabrication
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

Cite this

Efficient quantum computation within a disordered heisenberg spin chain. / Lee, Chiu Fan; Johnson, Neil F.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 70, No. 5 A, 052322, 11.2004.

Research output: Contribution to journalArticle

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