Extended Data Fig. 3: Width of central peak.
From: Observing the two-dimensional Bose glass in an optical quasicrystal
a, FWHM of central peak for a = 11a0, data taken from Fig. 2b. b, Normalised cuts through the density distribution observed after time-of-flight (analogous to cuts through Fig. 2a). The red line in a indicates the measured in-situ cloud size, demonstrating that the observed peak width is dominated by the in-situ size. Both the FWHM and the absence of thermal components around the peaks in b demonstrate that the momentum distribution is compatible with T = 0 up to very close to the phase transition. Red dots in upper panel indicate the lattice depths used in the lower panel.
