A particular strength of ultracold quantum gases is the range of versatile detection methods
that are available. As they are based on atom–light interactions, the whole quantum optics …

Quantum-enhanced measurements exploit quantum mechanical effects for increasing the
sensitivity of measurements of certain physical parameters and have great potential for both …

Geometrical frustration in strongly correlated systems can give rise to a plethora of novel
ordered states and intriguing magnetic phases, such as quantum spin liquids,–. Promising …

Experimental realization of a quantum degenerate gas of molecules would provide access
to a wide range of phenomena in molecular and quantum sciences. However, the very …

Strong electron correlations lie at the origin of high-temperature superconductivity. Its
essence is believed to be captured by the Fermi-Hubbard model of repulsively interacting …

We report on the creation of homogeneous Fermi gases of ultracold atoms in a uniform
potential. In the momentum distribution of a spin-polarized gas, we observe the emergence …

The Pauli exclusion principle is one of the most fundamental manifestations of quantum
statistics. Here, we report on its local observation in a spin-polarized degenerate gas of …

Systems consisting of few interacting fermions are the building blocks of matter, with atoms
and nuclei being the most prominent examples. We have created a few-body quantum …

In a mesoscopic conductor, electric resistance is detected even if the device is defect-free.
We engineered and studied a cold-atom analog of a mesoscopic conductor. It consists of a …

We report on the single atom and single site-resolved detection of the total density in a cold
atom realization of the 2D Fermi-Hubbard model. Fluorescence imaging of doublons is …