Redshift drift as a model independent probe of dark energy
arXiv:2102.03774 · doi:10.1103/PhysRevD.103.L081302
Abstract
It is well known that positive values of redshift drift is a signature of dark energy within the conventionally studied Friedmann-Lema\^ıtre-Robertson-Walker (FLRW) universe models. Here we show -- without making assumptions on the metric tensor of the Universe -- that redshift drift is a promising direct probe of violation of the strong energy condition within the theory of general relativity.
5 pages
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