Out-of-time-order correlators in the one-dimensional XY model
Jia-Hui Bao,Cheng-Yong Zhang
Table 1. Summary of early-time power law growth of OTOCs with both local and nonlocal operators in the XY model.
(1, 1)(0, 1)(1, 0)(0, 0)
Cxxt4l+2${t}^{2l+1+{\left(-1\right)}^{l}}$${t}^{2l+1+{(-1)}^{l}}$
Cxyt4l${t}^{2l+1-{(-1)}^{l}}$${t}^{2l+1-{(-1)}^{l}}$
Cyyt4l − 2${t}^{2l+1+{(-1)}^{l}}$${t}^{2l+1+{(-1)}^{l}}$
Cxzt4lt2lt2l
Cyzt4l − 2t2lt2l
Czzt4l − 2t2lt0(l = 1)t2l