The competition between antiferromagnetism and hole motion in two-dimensional Mott insulators lies at the heart of a doping-dependent transition from an anomalous metal to a conventional Fermi liquid. Condensed matter experiments suggest charge carriers change their nature within this crossover, but a complete understanding remains elusive. more

German Chancellor Angela Merkel and Bavarian Prime Minister Markus Söder visited the MPQ and got a lab tour at our Rubidium Quantum Gas Microscope experiment. more

It has been predicted that even in the absence of disorder many-body systems may fail to thermalize.
In this work we observe non-ergodic dynamics in the 1D tilted Fermi-Hubbard model that is distinct from previously studied regimes,
and propose a microscopic mechanism that is due to emergent kinetic constraints. more

What happens when two molecules collide with each other? This seemingly simple question remains unanswered in many cases. Specifically, when two molecules collide in such a way that chemical reactions are impossible due to energy and momentum conservation, one would expect that the molecules remain unchanged. more

Thomas Kohlert successfully defended his doctoral thesis on "Probing weak ergodicity breaking in the one-dimensional Fermi-Hubbard model". more

Nelson successfully defended his doctoral thesis on "Probing many-body physics with multiorbital quantum gases". more

Precise control and study of molecules is challenging due to the variety of internal degrees of freedom and local coordinates that are typically not controlled in an experiment. Employing quantum gas microscopy to position and resolve the atoms in bound states of Rydberg atom pairs --- so-called Rydberg macrodimers --- solves most of these challenges and enables unique access to the molecular frame. more