Scatter Plot from Scientific Research

Measured pumping efficiency (fitted slopes of b , averaged over the pumping direction) as a function of Hubbard U . Nearly quantized pumping efficiency persists for weakly interacting atoms (both attractive and repulsive) and strongly attractive interactions up to | U | = 3.1(2) Δ 0 = 9.2(3) t . In the strongly repulsive regime, topological pumping breaks down. The error bars in the y direction correspond to the propagated error estimated from the uncertainty of the fit and those in the x direction, to the propagated error from lattice fluctuations. All the measurements in this figure were taken at a fixed period of T = 41.5(1.5) ℏ / t .

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