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Topologically protected states in one-dimensional continuous systems and Dirac points

✍ Scribed by Fefferman, C. L.; Lee-Thorp, J. P.; Weinstein, M. I.

Book ID
124152558
Publisher
National Academy of Sciences
Year
2014
Tongue
English
Weight
881 KB
Volume
111
Category
Article
ISSN
0027-8424

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Symmetry protection of topological phase
Symmetry protection of topological phases in one-dimensional quantum spin systems
✍ Pollmann, Frank; Berg, Erez; Turner, Ari M.; Oshikawa, Masaki πŸ“‚ Article πŸ“… 2012 πŸ› The American Physical Society 🌐 English βš– 605 KB

We discuss the characterization and stability of the Haldane phase in integer spin chains on the basis of simple, physical arguments. We find that an odd-S Haldane phase is a topologically nontrivial phase which is protected by any one of the following three global symmetries: (i) the dihedral group