2 papers
hep-th2026
Complex Worldline Instantons in (Anti-)de Sitter Space
Alberto Castellano, Jinwei Chu, Eliseu Kloster +1
We study complex saddle points of the worldline path integral for massive charged particles in two-dimensional maximally symmetric backgrounds threaded by homogeneous electric fiel…
hep-th2026
Entire Four-Graviton EFT from the Duality Between Color and Kinematics
John Joseph M. Carrasco, Sai Sasank Chava, Alex Edison +2
The Bern-Carrasco-Johansson (BCJ) double-copy construction reveals a fundamental structural connection between gauge and gravity theories. At its core, the BCJ double copy is direc…