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Emergent higher symmetry breaking without topological order?
In this paper prof. Wen states that (p.6)
a spontaneous higher symmetry broken state always corresponds to a topologically ordered state.
Are there examples of simple (or not) quantum spin models ...
7
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1
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Goldstone mode as spin wave in 2D?
I'm trying to understand how Goldstone modes destroy long range order in 1D and 2D spin lattice.
I started with a spin chain, using 1D XY-model, which has continuous symmetry. $H=- \sum_{<i j>} ...