Spread of Entanglement in Non-Relativistic Theories

Figure 6

Schematic representation of the convolution integral for a power-law quench with . The right and left columns show the two possible cases I: and II: , respectively. In the pre-quench and post-saturation regimes the integral is a constant. In the initial, intermediate, and final growth regimes the integral is time-dependent and can be performed by splitting it in various intervals, as shown in (112) and (113).