Gravitational Poisson brackets at null infinity compatible with smooth superrotations
Superrotations are local extensions of the Lorentz group at null infinity that have been argued to be symmetries of gravitational scattering. In their smooth version, they can be identified with the group of diffeomorphisms on the celestial sphere. Their canonicalrealization requires treating the ce...
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| Format: | article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/20.500.12008/48859 |
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