Participants in the QGates Network

University of Oxford

Team leaders

Dr. A.M. Steane, Prof. D.N. Stacey, and Dr. David Lucas.

Expertise and experience of the participating organisation

Dr. Steane leads a theoretical and experimental group working on quantum information processing at the Clarendon Laboratory in Oxford. The group consists of Dr. A. Steane, Prof. D. Stacey, Dr D. Lucas (Royal Society University Research Fellow) and 2 postgraduate students. Dr. Steane is the co-inventor of quantum error correction and his experimental group works with Ca ions held in a linear rf trap. The long-term goal of this group is to implement error correction schemes in a trapped ion processor.

The Center for Quantum Computation at Oxford University is one of the leading centres for research in this field, and indeed pioneered the field in several important respects. This Center combines theoretical expertise in quantum information and quantum optics with experimental expertise in single-ion trapping and cooling. This group has performed experiments on single calcium ions and strings of calcium ions, in particular measuring the (absence of) correlation of photon emission times from different ions, and developing a new method to reliably measure the spin state, which will provide the read-out in a quantum information experiment.

Relevant recent publications

  • "Search for correlation effects in linear chains of trapped ions", C.J.S Donald, D.M. Lucas, P.A. Barton, M.J. McDonnell, J.P.Stacey, D.A.Stevens, D.N.Stacey and A.M.Steane, Europhys.Lett., 51 (4), pp.388-94 (2000).
  • "Speed of ion trap quantum information processors", A. Steane, C. F. Roos, D. Stevens, A. Mundt, D. Leibfried, F. Schmidt Kaler and R. Blatt , Phys.Rev. A62, 042305 (2000).
  • "Efficient fault-tolerant quantum computing", A. M. Steane, Nature, 399, pp.124-6 (1999).
  • "Quantum computing with trapped ions, atoms and light", A.M.Steane and D.M.Lucas, Fortschritte der Physik [invited], 48 (9-11), pp.839-58 (2000).

    Involvement in other EC projects

    The Oxford group is involved in an IHP network (QUEST) and a QIPC RTD network (QUBITS).

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