Theory of quasiparticle interference in Kitaev quantum spin liquids

ORAL

Abstract

We study quasiparticle interference (QPI) in the Kitaev quantum spin liquid (QSL) for electrons tunneling into the QSL. The local tunneling conductance around a spin vacancy or localized vison reveals unique features associated with fractionalized Majorana fermions, chargons, and visons. In certain parameter regimes, the single-spinon density of states and momentum dispersion can both be directly extracted from the tunneling conductance. Our results suggest that QPI is a promising tool for identifying the Kitaev QSL and its fractionalized excitations.

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Publication: https://arxiv.org/abs/2407.03415

Presenters

  • Ammar Jahin

    • Los Alamos National Laboratory

Authors

  • Ammar Jahin

    • Los Alamos National Laboratory

  • Hao Zhang

    • Los Alamos National Laboratory (LANL)

  • Shizeng Lin

    • Los Alamos National Laboratory (LANL)
    • Los Alamos National Lab
    • Los Alamos National Laboratory
    • LANL

  • Gabor Halasz

    • Oak Ridge National Laboratory