The UV-finite theory conjecture on effective quantum master equations

In the BV formalism, let II be a local interaction for a UV-finite theory, and let r0r\to 0 denote the removal of the regularization. Write lnl_n^\hbar for the multilinear operations obtained from the renormalization procedure, and let \hbar be the formal quantum parameter. UV-finite theory conjecture. The effective quantum master equation in the limit r0r\to 0 should be expressible as

l1I+12l2(I,I)+13!l3(I,I,I)+=0,l_1^\hbar I+\frac{1}{2}l_2^\hbar(I,I)+\frac{1}{3!}l_3^\hbar(I,I,I)+\cdots=0,

where {l1,l2,}\{l_1^\hbar,l_2^\hbar,\ldots\} defines a family of LL_\infty-algebras parametrized by \hbar, with these operations replacing the BV Laplacian Δ\Delta through the renormalization procedure. This is presented as an expected structural description of the effective QME for UV-finite theories; the supplied passage does not state whether the claim has been proved or identify any unresolved cases.

Sources & referencesView supporting material

Primary source

Si Li, “Quantization and Algebraic Index”, arXiv:2511.12875 (2025).

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