Skip to main content

All Questions

1 vote
0 answers
70 views

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 ...
Kostas's user avatar
  • 29
7 votes
1 answer
867 views

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>} ...
Yi Jiang's user avatar
  • 314