Emergent SO(5) Symmetry at the Néel to Valence-Bond-Solid Transition
We show numerically that the “deconfined” quantum critical point between the Néel 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 Néel vector and the valence-bond solid order parameter to be rotated into...
Main Authors: | , , , , |
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Other Authors: | |
Format: | Article |
Language: | English |
Published: |
American Physical Society
2015
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Online Access: | http://hdl.handle.net/1721.1/100557 https://orcid.org/0000-0002-3488-4532 |