We present a first-principles scheme for incorporating many-body interactions into the unified description of quadratic optical response to light noncentrosymmetric crystals. The proposed method is based on time-dependent current-density theory and includes electron-hole attraction \textit{via} tensorial long-range exchange-correlation kernel, which we calculate self-consistently using bootstra...

Localization in one-dimensional interacting systems can be caused by disorder potentials or non-Hermiticity. The former phenomenon is the many-body localization (MBL), and latter non-Hermitian skin effect (NHSE). In this work, we numerically investigate interplay between these two kinds of localization, where energy-resolved MBL arises from a deterministic quasiperiodic potential fermionic chai...