most citedCorrelation-driven branch in doped excitonic insulators

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cond-mat.quant-gas2025

Dynamical correlation functions for the one-dimensional Bose-Hubbard insulator

Kevin zu Münster, Florian Gebhard, Satoshi Ejima +1

We calculate the dynamical current and kinetic-energy correlation functions for the first Mott lobe of the one-dimensional Bose-Hubbard model. We employ the strong-coupling expansi…