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Symmetry protection of topological phases in one-dimensional quantum spin systems

Open access
Pollmann, Frank, Berg, Erez, Turner, Ari M., Oshikawa, Masaki·2012·Physical Review B

Abstract

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 of $\ensuremath{\pi}$ rotations about the $x$, $y$, and $z$ axes, (ii) time-reversal symmetry ${S}^{x,y,z}\ensuremath{\rightarrow}\ensuremath{-}{S}^{x,y,z}$, and (iii) link inversion symmetry (reflection about a bond center), consistent with previous results [Phys. Rev. B 81, 064439 (2010)]. On the other hand, an even-$S$ Haldane phase is not topologically protected (i.e., it is indistinct from a trivial, site-factorizable phase). We show some numerical evidence that supports these claims, using concrete examples.

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Metadata

Authors
Pollmann, F., Berg, E., Turner, A. M., & Oshikawa, M.
Venue
Physical Review B
Published
2012-02-22
Volume
85
Issue
7
ISSN
  • 1098-0121 (ISSN-L)
  • 1550-235X
OpenAlex
W2008822316
Cited by
848
References
31
FWCI
22.27
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Symmetry protection of topological phases in one-dimensional quantum spin systems. https://app.cochat.ai/papers/10.1103/physrevb.85.075125
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Pollmann, F., Berg, E., Turner, A. M., & Oshikawa, M. (2012). Symmetry protection of topological phases in one-dimensional quantum spin systems. Physical Review B. https://doi.org/10.1103/physrevb.85.075125

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