Classification and construction of higher-order symmetry-protected topological phases of interacting bosons

Motivated by the recent discovery of higher-order topological insulators, we study their counterparts in strongly interacting bosons: "higher-order symmetry-protected topological (HOSPT) phases." While the usual (first-order) SPT phases in d spatial dimensions support anomalous (d−1)-dimen...

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Veröffentlicht in:	Physical review. B 2020-02, Vol.101 (8), Article 085137
Hauptverfasser:	Rasmussen, Alex, Lu, Yuan-Ming
Format:	Artikel
Sprache:	eng
Schlagworte:	Bosons Crystal structure Crystallinity Dimensional analysis Domain walls Homology Phases Symmetry Topological insulators Topology
Online-Zugang:	Volltext
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