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Topological properties lie at the heart of many fascinating phenomena in solid state systems such as quantum Hall systems or Chern insulators. The topology can be captured by the distribution of Berry curvature, which describes the geometry of the eigenstates across the Brillouin zone. Employing fermionic ultracold atoms in a hexagonal optical lattice, we generate topological bands using resonant driving and show a full momentum-resolved measurement of the ensuing Berry curvature. Our results pave the way to explore intriguing phases of matter with interactions in topological band structures.

Optical scattering from nonspherical randomly aligned polydisperse particles compared to scattering expected from spherical particles

Apparatus for particulate smokes generation, control and sampling, noting combination with angular scanning spectropolarimeter

Interplanetary dust model ensemble derived for analysis of zodiacal light observations