Corner modes and ground-state degeneracy in models with gaugelike subsystem symmetries
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DOI: 10.1103/physrevb.100.165108
Abstract: Subsystem symmetries are intermediate between global and gauge symmetries. One can treat these symmetries either like global symmetries that act on subregions of a system, or gauge symmetries that act on the regions transverse to… read more here.
Keywords: topology; ground state; subsystem symmetries; state degeneracy ... See more keywords
Anomalous subdiffusion from subsystem symmetries
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DOI: 10.1103/physrevb.100.214301
Abstract: We introduce quantum circuits in two and three spatial dimensions which are classically simulable, despite producing a high degree of operator entanglement. We provide a partial characterization of these "automaton" quantum circuits, and use them… read more here.
Keywords: subsystem symmetries; subdiffusion subsystem; anomalous subdiffusion; subsystem ... See more keywords
Fractonlike phases from subsystem symmetries
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DOI: 10.1103/physrevb.102.045104
Abstract: We study models with fractonlike order based on ${\mathbb{Z}}_{2}$ lattice gauge theories with subsystem symmetries in two and three spatial dimensions. The three-dimensional (3D) model reduces to the 3D toric code when subsystem symmetry is… read more here.
Keywords: subsystem symmetries; lattice; fractonlike phases; phases subsystem ... See more keywords