Extended Data Fig. 5: The band-edge population \({{{{\mathcal{N}}}}}_{\pi }\).
From: Realizing discontinuous quantum phase transitions in a strongly correlated driven optical lattice
(a) Atom numbers around k = 0 (n0) and k = ± k0 (nπ) are counted inside the boxes in blue and red, respectively. Note that nπ is the sum over the two red boxes. (b-f) are measured with different box sizes lbox/k0 = 0.1, 0.2, 0.4, 0.6, and 0.8, respectively.
