Extended Data Fig. 7: Numerical simulation of the quench dynamics.
From: Continuous symmetry breaking in a trapped-ion spin chain

We simulate the unitary quench evolution in Fig. 4 (i.e. without considering any decoherence processes). a, Measured spin-spin correlations \(\langle {\widehat{\sigma }}_{x}^{(i)}{\widehat{\sigma }}_{x}^{(j)}\rangle \) developed during the evolution by Eq. (3) for time Ď„. b, Average correlation as a function of time. The dots in different colors correspond to the correlation averaged within the corresponding colored contours shown in a (top left). The fast oscillations are due to the large but finite longitudinal magnetic field B.