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The Raman scattering with local optical excitation from the Majorana edgemodes of Kitaev spin liquids and topological superconductors is studiedtheoretically. Although the effective one-dimensional model is common betweenthese two cases, the coupling to the electromagnetic field is different. It isfound that the Raman spectrum at low energy scales with $\omega^3$ in Kitaevspin liquids while it shows the gap in topological superconductors. This is insharp contrast to the infrared absorption, where the spectrum shows the gap inKitaev spin liquids, while it behaves as $\sim \omega^2$ in topologicalsuperconductors. This indicates that the electrodynamics of Majorana edge modesdepends on their higher-dimensional origins. The realistic estimate of theRaman scattering intensity is given for $\alpha$-RuCl$_3$ as the candidate forKitaev spin liquid.

Local Raman Spectroscopy of Chiral Majorana Edge Modes in Kitaev Spin Liquids and Topological Superconductors