activity
19982022
most citedOn the Tensionless Limit of String theory, Off - Shell Higher Spin Interaction Vertices and BCFW Recursion Relations

123 citations · 1.4k across the 30 of their papers we have counts for

collaborators

27 papers

hep-th2022★ 21 cited

Celestial Yang-Mills Amplitudes and D=4 Conformal Blocks

Wei Fan, Angelos Fotopoulos, Stephan Stieberger +2

We discuss the properties of recently constructed "single-valued" celestial four-gluon amplitudes. We show that the amplitude factorizes into the "current" part and the "scalar" pa…

hep-th2022★ 51 cited

Elements of Celestial Conformal Field Theory

Wei Fan, Angelos Fotopoulos, Stephan Stieberger +2

In celestial holography, four-dimensional scattering amplitudes are considered as two-dimensional conformal correlators of a putative two-dimensional celestial conformal field theo…

hep-th2021★ 36 cited

Conformal Blocks from Celestial Gluon Amplitudes II: Single-valued Correlators

Wei Fan, Angelos Fotopoulos, Stephan Stieberger +2

In a recent paper, here referred to as part I, we considered the celestial four-gluon amplitude with one gluon represented by the shadow transform of the corresponding primary fiel…

hep-th2021★ 63 cited

Conformal Blocks from Celestial Gluon Amplitudes

Wei Fan, Angelos Fotopoulos, Stephan Stieberger +2

In celestial conformal field theory, gluons are represented by primary fields with dimensions , and spin , in the adjoint representation of the ga…

hep-th2020★ 80 cited

Extended Super BMS Algebra of Celestial CFT

Angelos Fotopoulos, Stephan Stieberger, Tomasz R. Taylor +1

We study two-dimensional celestial conformal field theory describing four-dimensional supergravity/Yang-Mills systems and show that the underlying symmetry is a supers…

hep-th2020★ 31 cited

On Sugawara construction on Celestial Sphere

Wei Fan, Angelos Fotopoulos, Stephan Stieberger +1

Conformally soft gluons are conserved currents of the Celestial Conformal Field Theory (CCFT) and generate a Kac-Moody algebra. We study celestial amplitudes of Yang-Mills theory,…