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Review
Prospects for measurement-based quantum computing with solid state spins
Article first published online: 16 MAR 2009
DOI: 10.1002/lpor.200810051
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Benjamin, S.C., Lovett, B.W. and Smith, J.M. (2009), Prospects for measurement-based quantum computing with solid state spins. Laser & Photon. Rev., 3: 556–574. doi: 10.1002/lpor.200810051
Publication History
- Issue published online: 23 OCT 2009
- Article first published online: 16 MAR 2009
- Manuscript Accepted: 22 JAN 2009
- Manuscript Revised: 5 JAN 2009
- Manuscript Received: 5 SEP 2008
Funded by
- Royal Society
- National Research Foundation and Ministry of Education, Singapore
- Abstract
- References
- Cited By
Keywords:
- Quantum computing;
- entanglement;
- graph states;
- spin qubits;
- coherence;
- NV centres;
- quantum dots.
Abstract
This article aims to review the developments, both theoretical and experimental, that have in the past decade laid the ground for a new approach to solid state quantum computing. Measurement-based quantum computing (MBQC) requires neither direct interaction between qubits nor even what would be considered controlled generation of entanglement. Rather it can be achieved using entanglement that is generated probabilistically by the collapse of quantum states upon measurement. Single electronic spins in solids make suitable qubits for such an approach, offering long coherence times and well defined routes to optical measurement. We will review the theoretical basis of MBQC and experimental data for two frontrunner candidate qubits – nitrogen-vacancy (NV) centres in diamond and semiconductor quantum dots – and discuss the prospects and challenges that lie ahead in realising MBQC in the solid state.