Diffeomorphism Symmetry in Two Dimensions and Celestial Holography
High Energy Physics - Theory
2022-09-27 v2 General Relativity and Quantum Cosmology
Abstract
Two-dimensional diffeomorphism symmetry can be described by an operator algebra extension of the well-known Virasoro algebra description of conformal symmetry. Utilizing this extension, this note explains why the conformal symmetry that appears in celestial holography should not be extended to diffeomorphism symmetry, a possibility that several authors have proposed. The description of the two-dimensional diffeomorphism algebra presented here might be useful for other purposes.
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Cite
@article{arxiv.2208.13304,
title = {Diffeomorphism Symmetry in Two Dimensions and Celestial Holography},
author = {John H. Schwarz},
journal= {arXiv preprint arXiv:2208.13304},
year = {2022}
}
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9 pages