Fig. 6

Kolmogorov–Sinai entropy versus bond order. The Kolmogorov–Sinai entropy scaled by (D − 1)² is related to entanglement growth at short times. Here, we show the scaled KS entropy varying with bond order for non-integrable (circles), integrable (crosses) and nearly integrable (pluses) systems. The non-integrable KS entropy decreases like 0.14 + 1.6e^{−1.08(D−1)}, the Integrable KS entropy decreases like 0.19 + 6.6e^{−1.32(D−1)} and the nearly integrable KS entropy decreases like 0.19 + 11.4e^{−1.81(D−1)}