paper

Fractal symmetries: Ungauging the cubic code

arXiv:1603.05182 · doi:10.1103/PhysRevB.94.155128

Abstract

Gauging is a ubiquitous tool in many-body physics. It allows one to construct highly entangled topological phases of matter from relatively simple phases and to relate certain characteristics of the two. Here we develop a gauging procedure for general submanifold symmetries of Pauli Hamiltonians, including symmetries of fractal type. We show a relation between the pre- and post-gauging models and use this to construct short-range entangled phases with fractal-like symmetries, one of which is mapped to the cubic code by the gauging.

9 pages; v2 published version; v3 minor correction

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