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Results tagged with spin-models
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user 136844
A mathematical model used in physics primarily to explain magnetism.
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Anisotropy in spin chain hamiltonian
The Hamiltonian of XY Spin Chain on a lattice of N sites can be written as
$$
H = -J\sum_{i=1}^N \left(\frac{1+\gamma}{2}\sigma_i^x\sigma_{i+1}^x + \frac{1-\gamma}{2}\sigma_i^y\sigma_{i+1}^y + \lambda …
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