Quantum Phase Transition in the One-Dimensional XZ Model

Wojciech Brzezicki, Andrzej M. Oles

We introduce a one-dimensional (1D) XZ model with alternating ${\sigma }_i^z{\sigma }_{i+1}^z$ and ${\sigma }_i^x{\sigma }_{i+1}^x$ interactions on even/odd bonds, interpolating between the Ising model and the qu…