193 citations · 1.4k across the 29 of their papers we have counts for
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hep-th2021★ 56 cited
Celestial operator products from the worldsheet
Tim Adamo, Wei Bu, Eduardo Casali +1
We compute the operator product expansions of gluons and gravitons in celestial CFT from the worldsheet OPE of vertex operators of four-dimensional ambitwistor string theories. Rem…
hep-th2021★ 17 cited
Baby Universes and Worldline Field Theories
Eduardo Casali, Donald Marolf, Henry Maxfield +1
The quantum gravity path integral involves a sum over topologies that invites comparisons to worldsheet string theory and to Feynman diagrams of quantum field theory. However, the…