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Charges and fluxes of gravitational field from the twistor connection.

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TWT - Twistor theory

Using the twistor connection, we introduce a symplectic structure on the  space of conformal Einstein spacetimes. This leads to the definition of conformally invariant symplectic potentials, charges and fluxes. Their  advantage is the regularity at the boundary of the conformal completion of spacetime (scri) with a non-zero cosmological constant without extra holographic   renormalization.

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