11 citations · 19 across the 9 of their papers we have counts for
9 papers
de Sitter Wavefunction from Quadrangular Polylogarithms: Chain Graphs
Livia Ferro, Tomasz Lukowski, Lecheng Ren +4
We present an explicit formula for the -site chain graph contribution to the cosmological wavefunction for conformally coupled theory in de Sitter space. Our result relies…
Generalised Cluster Adjacency for Cosmology
Mattia Capuano, Livia Ferro, Tomasz Lukowski +2
In this paper we study the cluster algebraic properties of wavefunction coefficients for conformally coupled scalar theories in de Sitter cosmology. We show that the symbol of the…
Loops and legs: ABJM amplitudes from -graphs
Song He, Yao-Qi Zhang
We initiate a systematic study on how to extract planar integrands of (supersymmetric) scattering amplitudes with loops and legs in Aharony-Bergman-Jafferis-Maldacena (ABJM…
A Hidden Permutation Symmetry of Squared Amplitudes in ABJM Theory
Song He, Canxin Shi, Yichao Tang +1
We define the square amplitudes in planar Aharony-Bergman-Jafferis-Maldacena theory (ABJM), analogous to that in super-Yang-Mills theory (SYM). Surprisingly, the…
Notes on conformal integrals: Coulomb branch amplitudes, magic identities and bootstrap
Song He, Xuhang Jiang, Jiahao Liu +1
We study multi-loop conformal integrals for four-point correlators of planar super-Yang-Mills theory, and in particular those contributing to Coulomb branch amplitudes…
The Cusp Limit of Correlators and A New Graphical Bootstrap for Correlators/Amplitudes to Eleven Loops
Song He, Canxin Shi, Yichao Tang +1
We consider the universal behavior of half-BPS correlators in super-Yang-Mills in the cusp limit where two consecutive separations become lightl…
From squared amplitudes to energy correlators
Song He, Xuhang Jiang, Qinglin Yang +1
The leading order -point energy correlators of maximally supersymmetric Yang-Mills theory in the limit where the detectors are collinear can be expressed as an integral of t…
Differential equations and recursive solutions for cosmological amplitudes
Song He, Xuhang Jiang, Jiahao Liu +2
Recently considerable efforts have been devoted to computing cosmological correlators and the corresponding wavefunction coefficients, as well as understanding their analytical str…
One-loop Bern-Carrasco-Johansson Numerators on Quadratic Propagators from the Worldsheet
Jin Dong, Yao-Qi Zhang, Yong Zhang
We introduce a novel approach for deriving one-loop Bern-Carrasco-Johansson (BCJ) numerators and reveal the worldsheet origin of the one-loop double copy. Our work shows that expan…