Through her research work to date, Elina Fuchs has made relevant contributions to two very different but equally highly specialised areas of theoretical physics: firstly theoretical high-energy physics and accelerator-driven elementary particle physics, and secondly the complementary field of high-precision physics of atomic transitions. At the same time, her work has revealed unexpected intersections between the two fields. She does not conduct her research solely at the theoretical level, but always tries to align her results as closely as possible with experimental data or propose experiments herself which can be used to test her theoretical ideas. During her postdoctoral period, for example, Fuchs recommended isotope shift spectroscopy as a highly sensitive measurement in the search for new physics beyond the Standard Model. Based on her achievements, Fuchs was appointed theory coordinator at the CERN Quantum Technology Initiative (QTI) in 2022.