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cond-mat.mtrl-sci2022★ 2 cited
Floquet formulation of the dynamical Berry-phase approach to non-linear optics in extended systems
Ignacio M. Alliati, Myrta Grüning
We present a Floquet scheme for the ab-initio calculation of nonlinear optical properties in extended systems. This entails a reformulation of the real-time approach based on the d…
cond-mat.mtrl-sci2021
Double -Grid Method for Solving the Bethe-Salpeter Equation via Lanczos Approaches
Ignacio M. Alliati, Davide Sangalli, Myrta Grüning
Convergence with respect to the size of the k-points sampling-grid of the Brillouin zone is the main bottleneck in the calculation of optical spectra of periodic crystals via the B…