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Updated: May 4, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Photonic coherent state transfer with Hamiltonian dynamics.

S Weimann, A Kay, R Keil

    Optics Letters
    |December 25, 2013
    PubMed
    Summary
    This summary is machine-generated.

    Researchers achieved near-perfect light wave transfer using quantum state emulation. This method efficiently moves excitations across 11 sites for both classical light and single photons, even manipulating polarization.

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    Area of Science:

    • Quantum physics
    • Photonics
    • Waveguide technology

    Background:

    • Quantum state transfer protocols are crucial for quantum information processing.
    • Previous methods often require complex setups or are limited in fidelity.
    • Emulating quantum dynamics in classical systems offers new avenues for robust information transfer.

    Purpose of the Study:

    • To demonstrate near-perfect light wave transfer using quantum state emulation.
    • To investigate the fidelity and applicability of this method for classical and quantum light.
    • To explore the integration of polarization as an additional degree of freedom in the transport protocol.

    Main Methods:

    • Emulation of quantum state transfer on a lattice using Hamiltonian dynamics.
    • Implementation of time-dependent intersite couplings in a waveguide structure.
    • Utilizing polarization as a degree of freedom for light transport.

    Main Results:

    • Achieved near-perfect light wave transfer with a fidelity of 0.93 over 11 sites.
    • Demonstrated successful transfer for both classical light and single photons.
    • Showcased polarization rotation operations up to 40° during state transfer.

    Conclusions:

    • The developed method provides a robust platform for high-fidelity light wave transfer.
    • This technique is versatile, applicable to both classical and quantum light regimes.
    • Introducing polarization adds a new dimension for advanced photonic transport protocols.