• DocumentCode
    2267992
  • Title

    Entanglement-free, Heisenberg-limited phase measurement

  • Author

    Higgins, B.L. ; Wiseman, H.M. ; Pryde, G.J. ; Berry, D.W. ; Bartlett, S.D.

  • Author_Institution
    Centre for Quantum Comput. Technol., Griffith Univ., Brisbane, QLD
  • fYear
    2008
  • fDate
    4-9 May 2008
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We demonstrate experimental Heisenberg-limited scaling of the variance in optical phase measurements. Our algorithm replaces entangled states - often thought essential for Heisenberg scaling - with single photons, multiple phase shift passes, and adaptive measurement.
  • Keywords
    Heisenberg model; phase measurement; quantum entanglement; quantum optics; Heisenberg-limited scaling; adaptive measurement; algorithm; entangled states; multiple phase shift; optical phase; phase measurement; single photons; Optical computing; Optical interferometry; Optical retarders; Phase estimation; Phase measurement; Phase shifting interferometry; Physics computing; Polarization; Quantum computing; Quantum entanglement; (120.5050) Phase measurement; (270.5290) Photon statistics;
  • fLanguage
    English
  • Publisher
    iet
  • Conference_Titel
    Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
  • Conference_Location
    San Jose, CA
  • Print_ISBN
    978-1-55752-859-9
  • Type

    conf

  • Filename
    4572891
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2267992