On-shell Correlators and Color-Kinematics Duality in Curved Spacetimes
In this talk, we present progress towards generalizing on-shell kinematics and color-kinematics duality to curved spacetimes. First, we define a perturbatively calculable quantity—the on-shell correlator—which furnishes a unified description of particle dynamics in curved spacetime. Specializing to the cases of flat and anti-de Sitter space, on-shell correlators coincide precisely with on-shell scattering amplitudes and boundary correlators respectively. We then introduce a notion of on-shell kinematics for symmetric spaces in which the corresponding on-shell momenta are built from isometry generators. Using this isometric language in AdS, we compute scalar correlators and give a field-theoretic derivation of color-kinematics duality for the nonlinear sigma model. Finally, we comment on possible extensions to spacetimes without symmetry.
LEXINGTON, Ky. (Sept. 15, 2022) — Dave Moecher, a professor in the University of Kentucky Department of Earth and Environmental Sciences, recently returned from Ireland, where he spent five months studying the erosion of the Appalachian Mountains and exploring the culture and history of the Emerald Isle.
LEXINGTON, Ky. – Tiffany Barnes, professor of political science in the University of Kentucky’s College of Arts & Sciences, will co-edit a series of books from Cambridge University Press titled “Elements in Gender & Politics.” 