Gravity degrees of freedom on a null surface
APA
Hopfmueller, F. (2017). Gravity degrees of freedom on a null surface. Perimeter Institute. https://pirsa.org/17060022
MLA
Hopfmueller, Florian. Gravity degrees of freedom on a null surface. Perimeter Institute, Jun. 01, 2017, https://pirsa.org/17060022
BibTex
@misc{ pirsa_PIRSA:17060022, doi = {10.48660/17060022}, url = {https://pirsa.org/17060022}, author = {Hopfmueller, Florian}, keywords = {Other}, language = {en}, title = {Gravity degrees of freedom on a null surface}, publisher = {Perimeter Institute}, year = {2017}, month = {jun}, note = {PIRSA:17060022 see, \url{https://pirsa.org}} }
Nord Quantique
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Abstract
A canonical analysis for general relativity is performed on a null surface without fixing the diffeomorphism gauge, and the canonical pairs of configuration and momentum variables are derived. Next to the well-known spin-2 pair, also spin-1 and spin-0 pairs are identified. The boundary action for a null boundary segment of spacetime is obtained, including terms on codimension two corners.
FH, Laurent Freidel arXiv:1611.03096, Phys. Rev. D 95, 104006 (2017)