XXZ Spin Chain — Anisotropy Phase Diagram

The XXZ Heisenberg model H = J Σ [SˣSˣ + SʸSʸ + Δ·SᶻSᶻ] has three quantum phases controlled by anisotropy Δ. Ferromagnetic (Δ<−1), critical XY phase (−1<Δ<1), and Néel antiferromagnet (Δ>1). Drag the marker to explore.

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Anisotropy Δ: 0.00 Chain length N: 20 Exchange J: 1.00

Critical XY Phase

Ground energy/site: —

String order: —

Gap: gapless