Quantum Technologies and especially Quantum Computing are strongly evolving fields in HEP. There are several European Initiatives, for example the CERN QTI – Quantum Technology Initiative, as well as initiatives on national level. In Germany, DESY, in its role as the German national HEP hub, had established a Quantum Technology Task Force about one year ago. This Task Force is in the process of building “DESY Quantum.”, an institutional organization of various activities for Quantum Technologies at DESY, which comprises Quantum Computing, Quantum Sensing as well as Quantum Materials and tailor-made Quantum Devices with DESY’s brilliant photon sources. Following the pioneering in-depth work in Quantum Computing in HEP Theory, the presentation will report on DESY’s activities in lattice gauge calculations, error mitigation algorithms as well as methods to analyze and optimize quantum gate expressivity.