Quantum computing (QC) is a constantly evolving research field, and the rapid progress in hardware development is opening new possibilities and offering new challenges. At the same time, quantum information is a highly multidisciplinary field, with increasing crossbreeding with condensed matter, molecular physics, quantum optics, and high-energy physics. The Quantum Science Generation (QSG) 2026, in its fourth edition, continues this successful event series aimed at young researchers who are interested in expanding their expertise or are delving for the first time into the fascinating field of quantum technologies