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The Hall effect is a cornerstone of modern science, spanning applications from cutting-edge technologies to the discovery of exotic topological phases of matter. In solid-state systems, it manifests as a voltage perpendicular to current flow in a magnetic field, giving rise to transverse Hall resistance. Yet, its behavior in quantum systems remains elusive. Using neutral-atom quantum simulators, we introduce the first direct measurement of Hall voltage and resistance in a non-electron-based system. This work links quantum simulations to real-world experiments, unlocking new avenues to explore the Hall effect in tunable, strongly correlated systems. T.-W. Zhou et al. |
Two electrons are better than one... In the Yb lab we produce Bose-Einstein condensates and degenerate Fermi gases of ytterbium atoms. These atoms offer metastable electronic states, ultranarrow clock transitions, multicomponent fermions with SU(N) interactions: a whole range of experimental tools that allow new possibilities for quantum simulation and quantum information processing.