Author

Lecheng Ren

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Preprint Oct 2026

de Sitter Wavefunction from Quadrangular Polylogarithms: Polygon Graphs

We present an explicit formula for the $n$-gon graph contribution to the integrand of the cosmological wavefunction for conformally coupled $\phi^3$ theory in de Sitter space. Our result relies on the fact that its symbol satisfies total compatibility with respect to the $B_{2n-1}$ cluster algebra. We introduce $B$-typ...

L. Ferro, Tomasz Lukowski, S. Paranjape et al. · 0 citations

Preprint Jul 2026

Energy-Energy Correlators at Strong Coupling

We study energy-energy correlators (EEC) in planar $\mathcal{N}=4$ super Yang-Mills theory at strong't Hooft coupling $\lambda$. We consider the EEC in states created by half-BPS operators of arbitrary dimension $p$, and determine the corresponding event-shape function up to order $\lambda^{-3/2}$ from the worldsheet r...

Max Jackson, Lecheng Ren, Bo Wang et al. · 1 citation