Our research deals with experiments that should help to understand properties of the early Universe. We currently focus on the nature of the excess of matter versus antimatter. In most scenarios that describe this so-called baryogenesis, new sources of broken symmetries in the early Universe are required. Electric dipole moments (EDM) of fundamental quantum systems are interesting systems to investigate such new sources of CP (or T) violation in the baryon-sector, beyond the Standard Model of particle physics (SM). Experiments in this field are almost table-top scale, but are nevertheless probing physics at or beyond the reach of the LHC. Alternatively, the asymmetry of baryons could originate from an excess of leptons, which was then transferred to the baryons. Although most models that describe possible procedures for such a process are even further distant from direct experimental investigation, there could be an intriguing possibility to find a hint for such a phenomenon: the detection of neutrino-less double beta decay. Such an observation would (next to other fundamental consequences) show that neutrinos are Majorana-particles. This in turn would be an important feature for theories to generate symmetry breaking in the leptonic sector through the decay of a heavy partner of the light neutrino.
We are part of the research areas B and C of the Universe-Cluster
If you are interested in fundamental questions and experiments in the lab, don't hesistate to contact us! We work with the world's smallest magnetic field, high precision sensors, laser polarized noble gases, superconducting sensors and trapped ultra-cold neutrons. Our experiments are performed at TUM and the Universe-Cluster, the FRM-II reactor, ILL (Grenoble), WIPP (New Mexico), Berkeley, PTB Berlin and the Argonne Lab (Chicago). We are continuously looking for motivated students, diploma or PhD students to participate in our lab. If you are interested just visit us or contact Peter Fierlinger or the researcher who works on the project you are interested in.