Year: 2022
Type: article
Abstract: We derive a nonperturbative, Lagrangian-level formulation of the double copy in two spacetime dimensions. Our results elucidate the field theoretic underpinnings of the double copy in a broad class of scalar theories which can include masses and higher-dimension operators. An immediate corollary is the amplitudes-level double copy at all orders in perturbation theory. Applied to certain integrable models, the double copy defines an isomorphism between Lax connections, Wilson lines, and infinite towers of conserved currents. We also implement the double copy at the level of nonperturbative classical solutions, both analytically and numerically, and present a generalization of the double copy map that includes a fixed tower of higher-dimension corrections given by the Moyal algebra.
Source: Physical Review Letters
Institutions: California Institute of Technology, Northwestern University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,750
Funders: National Science Foundation, U.S. Department of Energy, Northwestern University, University of California, Los Angeles, Walter Burke Institute for Theoretical Physics, Kavli Institute for Theoretical Physics, University of California, Santa Barbara, Institute for Digital Research and Education, University of California, Los Angeles
OpenAlex ID: W4309830392