A tensor-network framework using quantics tensor cross interpolation and the kernel polynomial method enables real-space spectral function calculations for billion-site 3D non-Hermitian higher-order topological insulators.
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Real-space spectral functions of three-dimensional billion-size topological non-Hermitian matter with tensor networks
A tensor-network framework using quantics tensor cross interpolation and the kernel polynomial method enables real-space spectral function calculations for billion-site 3D non-Hermitian higher-order topological insulators.