Groundstate fidelity phase diagram of the fully anisotropic two-leg spin-½ XXZ ladder by Sheng-Hao Li, Qian-Qian Shi, Murray T Batchelor, Huan-Qiang Zhou

“…The fully anisotropic two-leg spin- $\tfrac{1}{2}$ XXZ ladder model is studied in terms of an algorithm based on the tensor network (TN) representation of quantum many-body states as an adaptation of projected entangled pair states to the geometry of translationally invariant infinite-size quantum spin ladders. …”
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