Walker-Wang models and axion electrodynamics

Curt Von Keyserlingk; F. J. Burnell

doi:10.1103/PhysRevB.91.045134

Walker-Wang models and axion electrodynamics

Curt Von Keyserlingk, F. J. Burnell

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We connect a family of gauge theories (Maxwell theories with a magnetoelectric coupling θ=2πk,k∈Z) to the family of 3D topological lattice models introduced by Walker and Wang. In particular, we show that the lattice Hamiltonians capture a certain strong-coupling limit of these gauge theories, in which the system enters a gapped (confined) phase. We discuss the relationship between the topological order exhibited by certain of these lattice Hamiltonians and the characteristic electromagnetic response of the symmetry-protected bosonic topological insulator.

Original language	English
Article number	045134
Number of pages	23
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	91
Issue number	4-15
DOIs	https://doi.org/10.1103/PhysRevB.91.045134
Publication status	Published - 26 Jan 2015

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Walker-Wang models and axion electrodynamics

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