Figure 3

Sudden emergence of a sink at the center site i = 30 for a lattice of L = 61 sites and N = 20 bosons calculated by the tDMRG method.
(a) Evolution of the density profile for U = J and V = J. Here we focus on the time before the particles bounce back from the edges. (b) Number of particles in the sink versus time for different interaction strength and potential depth. (c) Intermediate-time average (10t0–15t0) of the particle number in the sink. The error bar is due to statistical average.