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arXiv · 2407.03415

Theory of quasiparticle interference in Kitaev quantum spin liquids

Ammar Jahin·Hao Zhang·Gábor B. Halász·Shi-Zeng Lin
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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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Ammar Jahin, Hao Zhang, Gábor B. Halász, Shi-Zeng Lin. 2024-07-03. Theory of quasiparticle interference in Kitaev quantum spin liquids. https://doi.org/10.1103/physrevlett.134.126501

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