Einstein gravity from the ${\N=4}$ spinning particle
High Energy Physics - Theory
2018-11-14 v1
Abstract
We obtain a manifestly background independent BRST quantization of the supersymmetric spinning particle. We show that nilpotency of the BRST charge implies the Einstein equations admitting a cosmological constant of indefinite sign. The physical graviton states are given by the vertex operator, obtained by an infinitesimal variation of , acting on diffeomorphism ghost states. In addition, the tree-point graviton scattering vertex is correctly reproduced by the worldline computation with these vertex operators.
Keywords
Cite
@article{arxiv.1807.07989,
title = {Einstein gravity from the ${\N=4}$ spinning particle},
author = {Roberto Bonezzi and Adiel Meyer and Ivo Sachs},
journal= {arXiv preprint arXiv:1807.07989},
year = {2018}
}