corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 100 » Issue 6
< Previous Article | Next Article >

Phys. Rev. Lett. 100, 060502 (2008) [4 pages]

How Good Must Single Photon Sources and Detectors Be for Efficient Linear Optical Quantum Computation?

Download: PDF (513 kB) Buy this article Export: BibTeX or EndNote (RIS)

Michael Varnava1, Daniel E. Browne2,3, and Terry Rudolph1,4
1QOLS, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BW, United Kingdom
2Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT
3Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, United Kingdom
4Institute for Mathematical Sciences, Imperial College London, 53 Exhibition Road, London SW7 2BW, United Kingdom

Received 6 February 2007; revised 20 July 2007; published 12 February 2008

We present a scheme for linear optical quantum computation that is highly robust to imperfect single photon sources and inefficient detectors. In particular we show that if the product of the detector efficiency with the source efficiency is greater than 2/3, then efficient linear optical quantum computation is possible. This high threshold is achieved within the cluster state paradigm for quantum computation.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.060502
DOI:
10.1103/PhysRevLett.100.060502
PACS:
03.67.Lx, 03.67.Mn, 42.50.Dv
 
< Previous Article | Next Article >