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Xiang-Qian Li

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Preprint Sep 2026

Nonlinear pole topology of slow currents in holographic probe-brane metals

Low-frequency Drude response does not by itself determine which nearly conserved sector carries an electric current. We classify the leading cubic retarded response of an isolated, inversion-symmetric slow vector by its pole topology. Constitutive nonlinearity produces only incoming-frequency poles, whereas nonlinear r...

Yan Han, Xiang-Qian Li · 0 citations

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