Ultracold quantum gases: a versatile experimental platform for exploring quantum many-body physics
in which we used matter-wave optics to reach an effective resolution well below the lattice spacing [3] and even measure the local phase of the wave function in order to study the quasi long-range phase [...] Weitenberg & J. Simonet, Nature Phys. 17, 1342 (2021). [2] J. Sherson et al., Nature 467, 68-72 (2010). [3] L. Asteria et al., Nature 599, 571 (2021). …