Ambitwistor string vertex operators on curved backgrounds

Abstract

We present vertex operators for ambitwistor strings around generic Yang-Mills, gravity and NS-NS backgrounds. The requirement that vertex operators lie in the BRST cohomology of the worldsheet theory enforces the appropriate linear equations of motion (as well as gauge fixing conditions) for the respective perturbations in these backgrounds. Due to the nature of ambitwistor strings, no approximation is taken and all calculations around the backgrounds are exact.

arXiv comment18 pages, no figures

References in corpus (16)

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Cited by in corpus (12)

• Celestial amplitudes and conformal soft theorems
• Plane wave backgrounds and colour-kinematics duality
• Celestial double copy from the worldsheet
• Scattering Equations in AdS: Scalar Correlators in Arbitrary Dimensions
• Graviton scattering in self-dual radiative space-times
• Gluon scattering on self-dual radiative gauge fields
• Ambitwistor Strings and the Scattering Equations on AdS${}_3\times$S${}^3$
• Waveforms from Amplitudes
• On polarized scattering equations for superamplitudes of 11D supergravity and ambitwistor superstring
• Ambitwistor strings and amplitudes in curved backgrounds
• A Note on Classical Aspects of the Four Dimensional Anomaly-Free Twistor String
• Ambitwistor string amplitudes in light-like linear dilaton background