Another proof of the positive energy theorem in gravity
classification
🌀 gr-qc
hep-th
keywords
energyasymptoticproofanotherasymptoticallycertaincomparedcondition
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We show that gravitational energy expression simplifies when a new set of coordinates that satisfies a certain asymptotic gauge condition is used. Compared to the ADM formula, positivity of the energy is more transparent in this new construction. Our proof relies on the asymptotic symmetries (specifically supertranslations) of the asymptotically flat spacetimes at spatial infinity in four dimensions.
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