The observation of third-harmonic generation (THG) in superconductors suggests that strong terahertz fields provide a preferential tool to excite collective excitations, e.g., the Higgs mode, which remain elusive ordinary spectroscopy. From theoretical point view, disorder effects must be included. Here, authors show by treating nonperturbatively THG is strongly enhanced disorder, and phase cha...

The low-energy (intraband) range of the third harmonic generation graphene in terahertz regime is governed by damping terms induced interactions. A controlled many-body description scattering processes thus a compelling and desirable requirement. In this paper, using Kadanoff-Baym approach, we systematically investigate impact interaction on graphene, taking elastic impurity as benchmark exampl...

<span lang="EN-US">The extensive use of power electronic converters in the third rail system increases harmonic distortions on electrical feeding systems. Electrical machines and transformers could be overheated causing premature failures devices. It is therefore important to address networks during real-time operation, which includes degraded not just normal operation. In this paper, a a...