Notes on the BMS group in three dimensions: II. Coadjoint representation
High Energy Physics - Theory
2015-06-23 v3 General Relativity and Quantum Cosmology
Abstract
The coadjoint representation of the BMS group, which governs the covariant phase space of three-dimensional asymptotically flat gravity, is investigated. In particular, we classify coadjoint BMS orbits and show that intrinsic angular momentum is free of supertranslation ambiguities. Finally, the link with induced representations upon geometric quantization is discussed.
Cite
@article{arxiv.1502.00010,
title = {Notes on the BMS group in three dimensions: II. Coadjoint representation},
author = {Glenn Barnich and Blagoje Oblak},
journal= {arXiv preprint arXiv:1502.00010},
year = {2015}
}
Comments
22 pages, references added, accepted for publication in JHEP. v3: Minor typos corrected, matches published version