Abstract
Parallelization of the R-matrix propagation method for the study of intense-laser-driven semiconductor superlattices is described. We focus on photodressed excitonic electron–hole pair states related to the optical properties of the system concerned. Here, we parallelize the loop of propagation sectors, which is regarded as a rate-determining step in the whole calculation: in each sector calculated R-matrix Greenʼs functions are playing a key role. The evaluated parallelization efficiency is found sufficiently high, compared with a conventional algorithm without such parallelization. Restriction of this efficiency arising from the inter-core communications is also discussed. Further, it is shown that by virtue of the present parallelization, we readily obtain high-resolution excitonic absorption spectra revealing conspicuous dynamic Fano resonance. ► We describe a parallelization scheme of the R-matrix propagation method. ► We parallelize the loop of propagation sectors. ► The obtained absorption spectra reveal dynamic Fano resonance.
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