Cosmological neutrino entanglement and quantum pressure

  title={Cosmological neutrino entanglement and quantum pressure},
  author={Daniel Pfenniger and Veruska Muccione},
  journal={Astronomy and Astrophysics},
Context. The widespread view that cosmological neutrinos, even if massive, are well described since the decoupling redshift z ≈ 10 10 down to the present epoch by an almost perfectly collisionless fluid of classical point particles is re-examined. Aims. In view of the likely sub-eV rest mass of neutrinos, the main effects due to their fermionic nature are studied. Methods. By numerical means we calculate the accurate entropy, fugacity and pressure of cosmological neutrinos in the Universe… 

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