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Research From Armenian National Academy Of Science Yields New Findin

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  • Research From Armenian National Academy Of Science Yields New Findin

    RESEARCH FROM ARMENIAN NATIONAL ACADEMY OF SCIENCE YIELDS NEW FINDINGS ON PHYSICS

    News of Science
    April 11, 2010

    "We propose a method that enables efficient conversion of the quantum
    information frequency between different regions of a spectrum of light
    based on recently demonstrated strong parametric coupling between
    two narrow-band single-photon pulses propagating in a slow-light
    atomic medium [N. Sisakyan and Yu. Malakyan, Phys. Rev," scientists
    in Yerevan, Armenia report.

    "A, 75, 063831 (2007)]. We show that an input qubit at telecom
    wavelength is transformed into another at a visible domain in
    a lossless and shape-conserving manner while keeping the initial
    quantum coherence and entanglement," wrote A. Gogyan and colleagues,
    Armenian National Academy of Science.

    The researchers concluded: "These transformations can be realized
    with a quantum efficiency close to its maximum value."

    Gogyan and colleagues published their study in Physical Review a
    (Qubit transfer between photons at telecom and visible wavelengths
    in a slow-light atomic medium. Physical Review a, 2010;81(2):4304).

    For more information, contact A. Gogyan, Armenian Natl Academy Sci,
    Inst Physics Res, Ashtarak 2, Yerevan 0203, Armenia.

    Publisher contact information for the journal Physical Review a
    is: American Physical Society, One Physics Ellipse, College Pk,
    MD 20740-3844, USA.
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