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Alleviating $\Lambda$CDM tension in Pantheon in late time quantum cosmology

Maurice H.P.M. van Putten

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<oai_dc:dc xmlns:dc="" xmlns:oai_dc="" xmlns:xsi="" xsi:schemaLocation="">
  <dc:creator>Maurice H.P.M. van Putten</dc:creator>
  <dc:description>Surveys of the Local Universe show a Hubble expansion significantly greater than $\Lambda$CDM estimates from the Cosmic 
Microwave Background by Planck. This may present a challenge to our application of general relativity to cosmology. 
Such tensions are expected in quantum cosmology, wherein de Sitter space is unstable by dark energy from the cosmological 
horizon ${\cal H}$. We report on a novel probe of late time cosmology in terms of matter density $\omega_m$ estimated over inner intervals $[0,z_{\max}]$. Independent of Planck, Pantheon data over $0&lt;z_{\max}\le2.26$ are found to exclude $\Lambda$CDM by 
$4.3\sigma$. In quantum cosmology, this reduces to $2.5\sigma$. (Published in revised form in MNRAS Letters, 2019,; AAS234 Press Conference,

  <dc:description>Follow-up to "H0 tension in Swampland: theory confronts reality", Nov 28-30, 2018, APCTP, Pohang</dc:description>
  <dc:subject>Hubble parameter dark energy quantum gravity</dc:subject>
  <dc:title>Alleviating $\Lambda$CDM tension in Pantheon in late time quantum cosmology</dc:title>
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