S-matrix at spatial infinity
High Energy Physics - Theory
2008-11-26 v4 General Relativity and Quantum Cosmology
Abstract
We provide a new method to construct the S-matrix in quantum field theory. This method implements crossing symmetry manifestly by erasing the a priori distinction between in- and out-states. It allows the description of processes where the interaction weakens with distance in space, but remains strong in the center at all times. It should also be applicable to certain spacetimes where the conventional method fails due to lack of temporal asymptotic states.
Cite
@article{arxiv.0710.5203,
title = {S-matrix at spatial infinity},
author = {Daniele Colosi and Robert Oeckl},
journal= {arXiv preprint arXiv:0710.5203},
year = {2008}
}
Comments
4 pages, LaTeX + revtex4; v2: normalization factors corrected; v3: two paragraphs added, minor corrections and enhancements, reference list updated; v4: references corrected/updated