Symmetries and overparametrization properties of Hamiltonian variational ansatzes for the $(1+1)$d ${\mathbb{Z}}_2$ lattice gauge theory

Kanta Yamanaka, Takanori Daiza, Katsumi Imaizumi +4

We perform detailed studies of five Hamiltonian variational ansatzes (HVA) based on the Hamiltonian of the $(1+1)$d ${\mathbb{Z}}_2$ lattice gauge theory. The ansatzes are designed t…