Theory of entangled-plasmon-pair generation in graphene

ORAL

Abstract

We study spontaneous parametric down conversion of terahertz photons into entangled plasmon pairs in graphene. This process is permitted by both symmetry and kinematics in a ribbon with an electron density gradient. We show that the conversion rate is maximized
in ribbons containing lateral p-n junctions. We discuss how the quantum entanglement of the generated pairs can be measured by near-field optics techniques. We specify requirements for achieving plasmonic two-mode squeezed states and plasmonic instabilities in the presence of losses. We also study nonlinear plasmonic effects in a large-area uniformly doped graphene sheets due to third-order optical response.

*ONR Grant N00014-15-1-2671

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Presenters

  • Michael Fogler

    • University of California, San Diego
    • Physics, University of California, San Diego
    • University of California San Diego
    • UC San Diego

Authors

  • Zhiyuan Sun

    • Department of Physics, Columbia University

  • Dimitri Basov

    • Department of Physics, Columbia University in the City of New York
    • Department of Physics, Columbia University, New York 10027
    • department of physics, columbia university
    • Department of Physics, Columbia University
    • Physics, Columbia University
    • Columbia University

  • Michael Fogler

    • University of California, San Diego
    • Physics, University of California, San Diego
    • University of California San Diego
    • UC San Diego