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Infinity-categorical equivalence between PFAs and AQFTs

Establish a full proof of an infinity-categorical generalization of the equivalence between suitable categories of prefactorization algebras (PFAs) and algebraic quantum field theories (AQFTs), extending the 1-categorical equivalence result to the infinity-categorical setting.

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Background

The paper reviews known relationships among different axiomatizations of quantum field theory in Lorentzian geometry. An example-independent equivalence theorem between prefactorization algebras and algebraic quantum field theories has been proven at the 1-categorical level, providing a solid bridge between these frameworks.

Recent work has made progress toward lifting this equivalence to an infinity-categorical framework, which is more natural for many modern homotopical and higher-categorical structures arising in quantum field theory. However, the authors note that a complete proof at the infinity-categorical level has not yet been achieved, identifying this as an explicit outstanding task in the literature.

References

Significant steps towards an oo-categorical generalization of this result appeared recently in [BCGS24]. However, a full proof at this level is still outstanding.

An equivalence theorem for algebraic and functorial QFT (2504.15759 - Bunk et al., 22 Apr 2025) in Section 1, Introduction and summary