2 papers
hep-th2020
BCJ, worldsheet quantum algebra and KZ equations
Chih-Hao Fu, Yihong Wang
We exploit the correspondence between twisted homology and quantum group to construct an algebra explanation of the open string kinematic numerator. In this setting the representat…
hep-th2018
A Vertex Operator Algebra Construction of the Colour-Kinematics Dual numerator
Chih-Hao Fu, Pierre Vanhove, Yihong Wang
We derive a vertex operator based expression for the kinematic numerators of Yang-Mills amplitudes by applying the momentum kernel formalism to open string amplitudes. The expressi…