Growth of a Renormalized Operator as a Probe of Chaos

Figure 1

The MERA tensor network is a circuit made of disentangler (boxes) and isometry (triangles) operations. More precisely, is given by the product of all the tensors between the lines and and provides a map from low-energy states () to high-energy states (). The Euclidean times again denote different energy scales, and corresponds to the UV cutoff.