Post-Classicism in Tree Amplitudes

TL;DR

This paper introduces perturbiners, a method for generating tree amplitudes in various field theories, providing a unified approach to their solutions across different models.

Contribution

It presents a concise introduction to perturbiners and their construction in Yang-Mills, SUSY Yang-Mills, gravity, and sine-Gordon theories, highlighting their role in computing tree amplitudes.

Findings

Perturbiners serve as generating functions for tree amplitudes.

Constructed in multiple theories including Yang-Mills and gravity.

Simplifies the calculation of tree-level scattering amplitudes.

Abstract

This is a short and simple introduction into perturbiners, that is, the solutions of field equations which are generating functions for tree amplitudes. The perturbiners have been constructed in Yang-Mills, in SUSY Yang-Mills, in gravity, and in sin(h)-Gordon.