Linking Past and Future Null Infinity in Three Dimensions
High Energy Physics - Theory
2017-04-19 v2 General Relativity and Quantum Cosmology
Abstract
We provide a mapping between past null and future null infinity in three-dimensional flat space, using symmetry considerations. From this we derive a mapping between the corresponding asymptotic symmetry groups. By studying the metric at asymptotic regions, we find that the mapping is energy preserving and yields an infinite number of conservation laws.
Keywords
Cite
@article{arxiv.1701.06573,
title = {Linking Past and Future Null Infinity in Three Dimensions},
author = {Stefan Prohazka and Jakob Salzer and Friedrich Schöller},
journal= {arXiv preprint arXiv:1701.06573},
year = {2017}
}
Comments
7 pages, 3 figures; added references and appendix, matches published version