Talk page
Title:
A TQFT Perspective on Fracton Order
Speaker:
Abstract:
Fracton phases of matter exhibit striking behaviour which seemingly renders them beyond the standard topological quantum field theory (TQFT) paradigm for gapped quantum phases. In this talk, I will discuss progress towards understanding fracton phases from the perspective of TQFTs. After reviewing the basic phenomenology of 3+1D gapped fracton phases through simple lattice models, I will show how these models can be realized by a network of topological defects embedded into stratified 3+1D TQFTs. Then, I will show how a new model with non-Abelian fractons can be obtained through the defect network construction and end with a discussion of ongoing work related to the classification of fracton order.
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