Dark Energy after GW170817 and GRB170817A.

@article{Creminelli2017DarkEA,
  title={Dark Energy after GW170817 and GRB170817A.},
  author={P. Creminelli and F. Vernizzi},
  journal={Physical review letters},
  year={2017},
  volume={119 25},
  pages={
          251302
        }
}
  • P. Creminelli, F. Vernizzi
  • Published 2017
  • Physics, Medicine
  • Physical review letters
  • The observation of GW170817 and its electromagnetic counterpart implies that gravitational waves travel at the speed of light, with deviations smaller than a few×10^{-15}. We discuss the consequences of this experimental result for models of dark energy and modified gravity characterized by a single scalar degree of freedom. To avoid tuning, the speed of gravitational waves must be unaffected not only for our particular cosmological solution but also for nearby solutions obtained by slightly… CONTINUE READING
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