Out of the many approaches to search for physics beyond the standard model, the so-called quantum frontier made significant progress in recent years. Based on technology developed for optical clocks, precision measurements at the 10^-19 level in fractional uncertainty allow to search for miniscule signatures of BSM physics. In my talk, I will discuss some of our current research activities. These include studies of the matter/antimatter asymmetry, searches for "new" scalar bosons, and tests of special relativity.