A linear 50/50 beamsplitter, together with a coincidence measurement, has been widely used in quantum optical experiments, such as teleportation, dense coding, etc., for interferometrically distinguishing, measuring, or projecting onto one of the four two-photon polarization Bell-states |/spl Psi//sup (-)/>. In this paper, we demonstrate that the coincidence measurement at the output of a beamsplitter cannot be used as an absolute identifier of the input state |/spl Psi//sup (-)/> nor as an indication that the input photons have projected to the |/spl Psi//sup (-)/> state.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Reliability of the beamsplitter based Bell-state measurement


    Contributors:
    Yoon-Ho Kim, (author) / Grice, W.P. (author)

    Published in:

    Publication date :

    2005-01-01


    Size :

    2124552 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Polarizing beamsplitter trims noise in EDFAs

    Pan, J. J. / Shi, Y. | British Library Online Contents | 1996


    The Strip Grating as a Circular Polarizing Beamsplitter

    Brand, G. F. | British Library Online Contents | 2002


    Dual Polarised Sub-MM Wave Frequency Selective Beamsplitter

    Dickie, R. / Cahill, R. / Gamble, H. S. et al. | British Library Conference Proceedings | 2006