Questions tagged [one-dimension]

Questions involving the modeling of systems in one dimension, such as 1D Ising models, 1D Hubbard models, or even carbon nanotubes.

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What are examples of materials that closely correspond to the Heisenberg model?

I use the antiferromagnetic Heisenberg model all the time: $ H = J \sum \limits_{\langle i,j \rangle} \vec S_i \cdot \vec S_j$ What are some examples of materials that are well-described by this ...