Lattice reconstructions strongly modify on-site exciton repulsion while anisotropic screening produces a crossover to long-range attraction, providing parameters for a Bose-Hubbard model of moiré interlayer excitons.
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Effective long-range attraction of moir\'e excitons under the influence of atomic reconstructions and anisotropic screening
Lattice reconstructions strongly modify on-site exciton repulsion while anisotropic screening produces a crossover to long-range attraction, providing parameters for a Bose-Hubbard model of moiré interlayer excitons.