QFT in AdS instead of LSZ
High Energy Physics - Theory
2023-05-03 v2 High Energy Physics - Phenomenology
Abstract
The boundary correlation functions for a QFT in a fixed AdS background should reduce to S-matrix elements in the flat-space limit. We consider this procedure in detail for four-point functions. With minimal assumptions we rigorously show that the resulting S-matrix element obeys a dispersion relation, the non-linear unitarity conditions, and the Froissart-Martin bound. QFT in AdS thus provides an alternative route to fundamental QFT results that normally rely on the LSZ axioms.
Keywords
Cite
@article{arxiv.2210.15683,
title = {QFT in AdS instead of LSZ},
author = {Balt C. van Rees and Xiang Zhao},
journal= {arXiv preprint arXiv:2210.15683},
year = {2023}
}
Comments
8 pages, 1 figure