• DocumentCode
    2247734
  • Title

    Biphoton ququarts and their entanglement

  • Author

    Kim, Yoon-Ho

  • Author_Institution
    Dept. of Phys., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang
  • fYear
    2007
  • fDate
    26-31 Aug. 2007
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    A four-dimensional quantum system (ququart) can be constructed by using the biphoton polarization states of frequency-nondegenerate spontaneous parametric down-conversion. We first discuss how to generate and characterize general single-ququart states with varying degrees of mixedness. We then discuss schemes to entangle multiple biphoton ququarts using linear optics and coincidence post-selection.
  • Keywords
    optical frequency conversion; quantum entanglement; quantum optics; coincidence post-selection; four-dimensional quantum system; frequency-nondegenerate spontaneous parametric down-conversion; linear optics; multiple biphoton ququarts; polarization states; quantum entanglement; single-ququart states; Character generation; Frequency; Hilbert space; Nonlinear optics; Optical control; Optical polarization; Optical switches; Physics; Quantum entanglement; Ultrafast optics;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
  • Conference_Location
    Seoul
  • Print_ISBN
    978-1-4244-1173-3
  • Electronic_ISBN
    978-1-4244-1174-0
  • Type

    conf

  • DOI
    10.1109/CLEOPR.2007.4391556
  • Filename
    4391556