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Gapped theories have torsion anomalies

High Energy Physics - Theory 2024-08-28 v1 Strongly Correlated Electrons Mathematical Physics math.MP

Abstract

We prove special cases of a general conjecture: If an invertible field theory admits a projectively topological boundary theory, then it has finite order in the abelian group of invertible field theories. One can substitute `gapped' for `projectively topological'. Our proofs use evaluations of a field theory in parametrized families.

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Cite

@article{arxiv.2408.15148,
  title  = {Gapped theories have torsion anomalies},
  author = {Clay Córdova and Daniel S. Freed and Constantin Teleman},
  journal= {arXiv preprint arXiv:2408.15148},
  year   = {2024}
}

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8 pages