Emergent SO(5) Symmetry at the Néel to Valence-Bond-Solid Transition
We show numerically that the “deconfined” quantum critical point between the Neel antiferromagnet ´ and the columnar valence-bond solid, for a square lattice of spin 1=2, has an emergent SO(5) symmetry. This symmetry allows the Neel vector and the valence-bond solid order parameter to be rotated int...
Prif Awduron: | , , , , |
---|---|
Fformat: | Journal article |
Iaith: | English |
Cyhoeddwyd: |
American Physical Society
2015
|