Rotations, Negative Eigenvalues, and Newton Method in Tensor Network
Renormalization Group
Rotations, Negative Eigenvalues, and Newton Method in Tensor Network
Renormalization Group
In the tensor network approach to statistical physics, properties of the critical point of a 2D lattice model are encoded by a four-legged tensor which is a fixed point of an RG map. The traditional way to find the fixed point tensor consists in iterating the RG map after having …