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Phys. Rev. Lett. 93, 040503 (2004) [4 pages]

Optical Quantum Computation Using Cluster States

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Michael A. Nielsen *
School of Physical Sciences and School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia

Received 2 February 2004; published 21 July 2004

We propose an approach to optical quantum computation in which a deterministic entangling quantum gate may be performed using, on average, a few hundred coherently interacting optical elements (beam splitters, phase shifters, single photon sources, and photodetectors with feedforward). This scheme combines ideas from the optical quantum computing proposal of Knill, Laflamme, and Milburn [Nature (London) 409, 46 (2001)], and the abstract cluster-state model of quantum computation proposed by Raussendorf and Briegel [Phys. Rev. Lett. 86, 5188 (2001)].


©2004 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.93.040503
DOI: 10.1103/PhysRevLett.93.040503
PACS: 03.67.Lx, 42.50.Ar

* Electronic addresses: nielsen@physics.uq.edu.au and www.qinfo.org/people/nielsen

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