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Fracton fusion and statistics

Journal Article · · Physical Review. B
 [1];  [2]
  1. Univ. of Colorado, Boulder, CO (United States); University of Colorado Boulder
  2. Univ. of Colorado, Boulder, CO (United States)
We introduce and develop a theory of fusion and statistical processes of gapped excitations in Abelian fracton phases. The key idea is to incorporate lattice translation symmetry via its action on superselection sectors, which results in a fusion theory endowed with information about the nontrivial mobility of fractons and subdimensional excitations. This results in a description of statistical processes in terms of local moves determined by the fusion theory. Our results can be understood as providing a characterization of translation-invariant fracton phases. We obtain simple descriptions of the fusion theory in the X-cube and checkerboard fracton models, as well as for gapped electric and magnetic excitations of some gapless U(1) tensor gauge theories. An alternate route to the X-cube model fusion theory is provided by starting with a system of decoupled two-dimensional toric code layers, and giving a description of the p-string condensation mechanism within our approach. We discuss examples of statistical processes of fractons and subdimensional excitations in the X-cube and checkerboard models. As an application of the ideas developed, we prove that the X-cube and semionic X-cube models realize distinct translation-invariant fracton phases, even when the translation symmetry is broken corresponding to an arbitrary but finite enlargement of the crystalline unit cell.
Research Organization:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0014415
OSTI ID:
1671771
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 19 Vol. 100; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (9)

Fracton phases via exotic higher-form symmetry-breaking journal January 2021
Gauging fractons: Immobile non-Abelian quasiparticles, fractals, and position-dependent degeneracies journal October 2019
Comments on foliated gauge theories and dualities in 3+1d journal January 2021
Anisotropic layer construction of anisotropic fracton models journal December 2019
Electric circuit realizations of fracton physics journal December 2019
Hyperbolic fracton model, subsystem symmetry, and holography. II. The dual eight-vertex model journal December 2019
Gauging permutation symmetries as a route to non-Abelian fractons journal January 2019
Hyperbolic Fracton Model, Subsystem Symmetry, and Holography II: The Dual Eight-Vertex Model text January 2019
Electric Circuit Realizations of Fracton Physics text January 2019

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