Dr. Gergely Endrődi (Emmy Noether Nachwuchsgruppenleiter)
Quantum Chromodynamics (QCD) is the theory of the strong interactions that explains how the proton or the neutron (hadrons) are built up from elementary particles - quarks and gluons. QCD has a rich phase diagram: it exhibits among others a low-energy phase with hadronic degrees of freedom and a high-energy phase, where quarks are deconfined and the so-called quark-gluon plasma is formed. Detailed knowledge of this phase diagram help us understand the physics of various systems ranging from dense neutron stars through the early universe to heavy-ion collisions. The relevant parameters of the theory include the temperature, densities and background fields. The currently most successful approach to study the QCD phase diagram is via numerical Monte-Carlo simulation of the theory, discretized on a space-time lattice. Within our research group, we use lattice simulations to determine the yet uncharted regions of the QCD phase diagram at nonzero (isospin) densities and background electromagnetic fields.