A new real-space linear-scaling Bethe-Salpeter framework with sublattice-resolved decoupling and Kernel Polynomial Method enables O(N) excitonic absorption spectra for Anderson-disordered hBN, showing asymmetric broadening, redshift crossover, and exciton localization.
Dias and Julian F.R.V
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Excitons in Large Disordered Boron-Nitride Layer using Linear-Scaling Bethe-Salpeter Simulations
A new real-space linear-scaling Bethe-Salpeter framework with sublattice-resolved decoupling and Kernel Polynomial Method enables O(N) excitonic absorption spectra for Anderson-disordered hBN, showing asymmetric broadening, redshift crossover, and exciton localization.