Figure 3
From: Simulating the Kibble-Zurek mechanism of the Ising model with a superconducting qubit system

Population P+ as a function of the normalized time
and the comparison of
and P+.
(a) the evolution starting from t = −∞ with ϵi/2π = −200 MHz and ϵf/2π = 200 MHz. (b) the evolution starting from t = 0 with ϵi/2π = 0 and ϵf/2π = 400 MHz. Different LZ durations tLZ = 10 ns (red circle), 20 ns (magenta square), 40 ns (blue triangle), 80 ns (green diamond), are used to produce different LZT speed. The symbols (solid lines) are experimental (numerical) results. The red translucent (clear) regions mark the impulse (adiabatic) regions, while the boundary locates on
. The error bars are smaller than the sizes of the symbols. (c) The comparison of topological defects density
in KZM theory and P+ in LZT with ϵi/2π = 0. The blue symbols (green solid lines) are the experimental (numerical) results. The red dashed line shows the density
predicted in KZM with α = 0.784 as the best fit.