The classical two-dimensional Heisenberg model revisited: An $SU(2)$-symmetric tensor network study

  title={The classical two-dimensional Heisenberg model revisited: An \$SU(2)\$-symmetric tensor network study},
  author={Philipp Schmoll and Augustine Kshetrimayum and Jens Eisert and Rom{\'a}n Or{\'u}s and M. Rizzi},
  journal={SciPost Physics},
The classical Heisenberg model in two spatial dimensions constitutes one of the most paradigmatic spin models, taking an important role in statistical and condensed matter physics to understand magnetism. Still, despite its paradigmatic character and the widely accepted ban of a (continuous) spontaneous symmetry breaking, controversies remain whether the model exhibits a phase transition at finite temperature. Importantly, the model can be interpreted as a lattice discretization of the O(3)O(3… Expand


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