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arXiv · 2007.11677

Gravitational radiation condition at infinity with a positive cosmological constant

Francisco Fernández-Álvarez·José M. M. Senovilla
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Abstract

Gravitational waves have been directly detected and astronomical observations indicate that our Universe has a positive cosmological constant $\Lambda$. Nevertheless, a theoretical gauge-invariant notion of gravitational waves arriving at infinity (escaping from the space-time) in the presence of a positive $\Lambda$ has been elusive. We find the answer to this long-standing gravitational puzzle and present a geometric, gauge-invariant radiation condition at infinity.

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Francisco Fernández-Álvarez, José M. M. Senovilla. 2020-07-22. Gravitational radiation condition at infinity with a positive cosmological constant. https://doi.org/10.1103/physrevd.102.101502

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