PIRSA:22100017 Conference Quantum Gravity

DOI10.48660/22100017

Conference/School: Quantum Gravity Around the Corner

Geiller, M. (2022). The partial Bondi gauge. Perimeter Institute. https://pirsa.org/22100017

Geiller, Marc. The partial Bondi gauge. Perimeter Institute, Oct. 05, 2022, https://pirsa.org/22100017 

@misc{ pirsa_PIRSA:22100017,
  doi = {10.48660/22100017},
  url = {https://pirsa.org/22100017},
  author = {Geiller, Marc},
  keywords = {Quantum Gravity},
  language = {en},
  title = {The partial Bondi gauge},
  publisher = {Perimeter Institute},
  year = {2022},
  month = {oct},
  note = {PIRSA:22100017 see, \url{https://pirsa.org}}
}

Abstract

I will review the recent construction of an extended solution space for gravity, based on a so-called partial Bondi gauge fixing. This aims at investigating the possible relaxations of the boundary conditions, in order to include for example a cosmological constant, a polyhomogeneous expansion, and an arbitrary time-dependent boundary metric. I will also explain how to properly map these results to the Newman-Penrose formalism. Finally, I will discuss the application to three-dimensional gravity, where a new asymptotic symmetry can be revealed after working out all the subtleties of the covariant phase space formalism.

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