[Review paper]
The present and future of numerical simulation techniques for off-shell science
Motoichi Ohtsu
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Abstract
The first part of this article presents experimental results on novel devices that were fabricated and operated by utilizing dressed photons. The fabricated devices were photovoltaic devices having an Ag-electrode with a unique surface morphology, light-emitting diodes using silicon crystals, and nano-droplets in which pairs of nanometer-sized semiconductor particles were confined. The second part reviews the results of the numerical simulations for these devices using a random walk model. This model relies on statistical mechanics and complex-systems science. The third part describes the problems with these simulations and presents some suggestions for solving them. Finally, the need for a three-dimensional off-shell scientific model that takes account of interactions in a nanometric space is pointed out.