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arXiv 2103.05982gr-qchep-th
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On the canonical energy of weak gravitational fields with a cosmological constant $Λ\in \mathbb{R}$

P. T. Chruściel, Sk J. Hoque, M. Maliborski, T. Smołka

英文摘要:

We analyse the canonical energy of vacuum linearised gravitational fields on light cones on a de Sitter, Minkowski, and Anti de Sitter backgrounds in Bondi gauge. We derive the associated asymptotic symmetries. When $Λ>0$ the energy diverges, but a renormalised formula with well defined flux is obtained. We show that the renormalised energy in the asymptotically off-diagonal gauge coincides with the quadratisation of the generalisation of the Trautman-Bondi mass proposed in [13].

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