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Phys. Rev. Lett. 95, 100501 (2005) [4 pages]

Loss-Tolerant Optical Qubits

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T. C. Ralph, A. J. F. Hayes, and Alexei Gilchrist*
Centre for Quantum Computer Technology, Department of Physics, University of Queensland, QLD 4072, Brisbane, Australia

Received 20 February 2005; published 30 August 2005

We present a linear optics quantum computation scheme that employs a new encoding approach that incrementally adds qubits and is tolerant to photon loss errors. The scheme employs a circuit model but uses techniques from cluster-state computation and achieves comparable resource usage. To illustrate our techniques we describe a quantum memory which is fault tolerant to photon loss.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.100501
DOI:
10.1103/PhysRevLett.95.100501
PACS:
03.67.Lx, 42.50.Dv

*Electronic address: alexei@physics.uq.edu.au

 
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