Classification of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo>(</mml:mo><mml:mn>2</mml:mn><mml:mo>+</mml:mo><mml:mn>1</mml:mn><mml:mo>)</mml:mo></mml:math>D invertible fermionic topological phases with symmetry
Maissam Barkeshli, Yu-An Chen, Po-Shen Hsin, Naren Manjunath
Abstract
Integer quantum Hall states and their generalization to topological insulators and superconductors are paradigmatic examples of invertible fermionic topological states of matter. Here, the authors develop a comprehensive characterization and classification of invertible fermionic topological phases of matter in two spatial dimensions for general symmetry groups. The results are nonperturbative and apply to strongly interacting systems. In particular, they extend previous classification results to account for the possible chiral nature of invertible phases.
Topics & Concepts
PhysicsFermionCharge (physics)Topology (electrical circuits)CohomologyInvertible matrixAlgorithmQuantum mechanicsMathematicsCombinatoricsPure mathematicsTopological Materials and PhenomenaAdvanced Condensed Matter PhysicsQuantum many-body systems