Early Dark Energy Does Not Restore Cosmological Concordance

15 Jul 2020 Hill J. Colin McDonough Evan Toomey Michael W. Alexander Stephon

Current cosmological data exhibit a tension between inferences of the Hubble constant, $H_0$, derived from early and late-universe measurements. One proposed solution is to introduce a new component in the early universe, which initially acts as "early dark energy" (EDE), thus decreasing the physical size of the sound horizon imprinted in the cosmic microwave background (CMB) and increasing the inferred $H_0$... (read more)

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Categories


  • COSMOLOGY AND NONGALACTIC ASTROPHYSICS
  • GENERAL RELATIVITY AND QUANTUM COSMOLOGY
  • HIGH ENERGY PHYSICS - PHENOMENOLOGY
  • HIGH ENERGY PHYSICS - THEORY