Gapped symmetric edges of symmetry-protected topological phases

Symmetry-protected topological (SPT) phases are gapped quantum phases which host symmetry-protected gapless edge excitations. On the other hand, the edge states can be gapped by spontaneously breaking symmetry. We show that topological defects on the symmetry-broken edge cannot proliferate due to th...

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Veröffentlicht in:	Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2014-05, Vol.89 (20), Article 205117
Hauptverfasser:	Lu, Yuan-Ming, Lee, Dung-Hai
Format:	Artikel
Sprache:	eng
Schlagworte:	Boundaries Condensed matter Condensing Defects Phases Statistics Symmetry Topology Two dimensional
Online-Zugang:	Volltext
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