APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Applied Physics Letters / Volume 97 / Issue 21 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 97, 211109 (2010); http://dx.doi.org/10.1063/1.3497087 (3 pages)

High-fidelity operation of quantum photonic circuits

Anthony Laing1, Alberto Peruzzo1, Alberto Politi1, Maria Rodas Verde1, Matthaeus Halder1, Timothy C. Ralph2, Mark G. Thompson1, and Jeremy L. O’Brien1

1Centre for Quantum Photonics, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, University of Bristol, Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, United Kingdom
2Department of Physics, University of Queensland, St. Lucia, Queensland 4072, Australia

View MapView Map

(Received 17 June 2010; accepted 10 September 2010; published online 23 November 2010)

We demonstrate photonic quantum circuits that operate at the stringent levels that will be required for future quantum information science and technology. These circuits are fabricated from silica-on-silicon waveguides forming directional couplers and interferometers. While our focus is on the operation of quantum circuits, to test this operation required construction of a photon source that produced near-identical pairs of photons. We show nonclassical interference with two photons and a two-photon entangling logic gate that operate with near-unit fidelity. These results are a significant step toward large-scale operation of photonic quantum circuits.

© 2010 American Institute of Physics

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

light interference, logic gates, quantum gates, quantum optics

PACS

  • 03.67.Lx

    Quantum computation architectures and implementations

  • 84.30.Sk

    Pulse and digital circuits

  • 42.50.-p

    Quantum optics

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3497087

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    C. M. Dawson, H. L. Haselgrove, and M. A. Nielsen, Phys. Rev. Lett. 96, 020501 (2006).

    R. Raussendorf and J. Harrington, Phys. Rev. Lett. 98, 190504 (2007).

    C. M. Dawson, H. L. Haselgrove, and M. A. Nielsen, Phys. Rev. A 73, 052306 (2006).

    C. K. Hong, Z. Y. Ou, and L. Mandel, Phys. Rev. Lett. 59, 2044 (1987).

    A. M. Steane, Phys. Rev. Lett. 77, 793 (1996).

    T. C. Ralph, N. K. Langford, T. B. Bell, and A. G. White, Phys. Rev. A 65, 062324 (2002).

    H. F. Hofmann and S. Takeuchi, Phys. Rev. A 66, 024308 (2002).

    J. L. O'Brien, G. J. Pryde, A. Gilchrist, D. F. V. James, N. K. Langford, T. C. Ralph, and A. G. White, Phys. Rev. Lett. 93, 080502 (2004).

    K. Sanaka, K. J. Resch, and A. Zeilinger, Phys. Rev. Lett. 96, 083601 (2006).

    N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. O'Brien, G. J. Pryde, and A. G. White, Phys. Rev. Lett. 95, 210504 (2005).

    G. J. Pryde, J. L. O'Brien, A. G. White, S. D. Bartlett, and T. C. Ralph, Phys. Rev. Lett. 92, 190402 (2004).

    T. C. Ralph, S. D. Bartlett, J. L. O'Brien, G. J. Pryde, and H. M. Wiseman, Phys. Rev. A 73, 012113 (2006).

    A. S. Clark, J. Fulconis, J. G. Rarity, W. J. Wadsworth, and J. L. O'Brien, Phys. Rev. A 79, 030303 (2009).

    M. Varnava, D. E. Browne, and T. Rudolph, Phys. Rev. Lett. 100, 060502 (2008).


Figures (2)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. High-fidelity operation of quantum photonic circuits
  2. Photopolymerized microscopic vortex beam generators: Precise delivery of optical orbital angular momentum
  3. Ultrathin, ultrasmooth, and low-loss silver films via wetting and annealing
  4. Influence of carrier dynamics on the modulation bandwidth of quantum-dot based nanocavity devices
  5. Direct laser writing of whispering gallery microcavities by two-photon polymerization
Go to AIP Home
Copyright © American Institute of Physics
close