Abstract
We present a worldsheet theory that describes maps into a curved target space equipped with a B-field and dilaton. The conditions for the theory to be consistent at the quantum level can be computed exactly, and are that the target space fields obey the nonlinear d = 10 supergravity equations of motion, with no higher curvature terms. The path integral is constrained to obey a generalization of the scattering equations to curved space. Remarkably, the supergravity field equations emerge as quantum corrections to these curved space scattering equations.
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Adamo, T., Casali, E. & Skinner, D. A worldsheet theory for supergravity. J. High Energ. Phys. 2015, 116 (2015). https://doi.org/10.1007/JHEP02(2015)116
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DOI: https://doi.org/10.1007/JHEP02(2015)116