Higher-order entanglement and many-body invariants for higher-order topological phases
Yizhi You, Julian Bibo, Frank Pollmann
Abstract
This paper focuses on the characterization of higher order symmetry protected topological phases, using two methods, namely by introducing a many-body invariant related to the discrete Wen-Zee response, or by exploring the entanglement structure of these phases
Topics & Concepts
Quantum entanglementTopological entropy in physicsInvariant (physics)Topology (electrical circuits)Characterization (materials science)MathematicsPhysicsSymmetry (geometry)Multipartite entanglementTheoretical physicsOrder (exchange)Topological orderPure mathematicsSymmetry protected topological orderTopological quantum numberSymmetry groupField (mathematics)Quantum mechanicsQuantum many-body systemsTopological Materials and PhenomenaCold Atom Physics and Bose-Einstein Condensates