Symmetry-protected topological phases in spin ladders with two-body interactions
Spin-1/2 two-legged ladders respecting interleg exchange symmetry σ and spin rotation symmetry D2 have new symmetry-protected topological (SPT) phases which are different from the Haldane phase. Three of the new SPT phases are tx,ty,tz, which all have symmetry-protected twofold degenerate edge state...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/88713 https://orcid.org/0000-0002-5874-581X |