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Simulation of massless Dirac dynamics in plasmonic waveguide arrays.

Beibei Xu, Tao Li, Shining Zhu

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    |May 27, 2018
    PubMed
    Summary

    We demonstrate a novel photonic structure capable of simulating massless Dirac dynamics. This design uses evanescently coupled plasmonic waveguide arrays with tailored coupling coefficients for advanced light manipulation.

    Area of Science:

    • Condensed matter physics
    • Photonics
    • Quantum simulation

    Background:

    • Photonic structures offer new ways to control light.
    • Simulating quantum phenomena like Dirac dynamics is a key research area.

    Purpose of the Study:

    • To propose a design for simulating massless Dirac dynamics.
    • To explore the use of evanescently coupled plasmonic ridge waveguide arrays.
    • To tailor coupling coefficients for specific quantum simulations.

    Main Methods:

    • Utilizing evanescently coupled plasmonic ridge waveguide arrays.
    • Adjusting geometric parameters to control positive and negative coupling coefficients.
    • Applying coupled mode theory for theoretical analysis.

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    Main Results:

    • A feasible design for simulating massless Dirac dynamics is proposed.
    • The influence of geometric parameters on coupling coefficients is detailed.
    • Theoretical analysis based on coupled mode theory is presented.

    Conclusions:

    • The proposed plasmonic waveguide array design enables simulation of massless Dirac dynamics.
    • Advanced nanofabrication techniques can realize this design.
    • Excitation conditions significantly impact beam propagation in this system.