caa a22 4500 445386754 CHVBK 20180317143034.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10714-011-1199-1 doi (NATIONALLICENCE)springer-10.1007/s10714-011-1199-1 The value of the cosmological constant [Elektronische Daten] [John Barrow, Douglas Shaw] We make the cosmological constant, Λ, into a field and restrict the variations of the action with respect to it by causality. This creates an additional Einstein constraint equation. It restricts the solutions of the standard Einstein equations and is the requirement that the cosmological wave function possess a classical limit. When applied to the Friedmann metric it requires that the cosmological constant measured today, t U , be $${\Lambda \sim t_{U}^{-2} \sim 10^{-122}}$$ , as observed. This is the classical value of Λ that dominates the wave function of the universe. Our new field equation determines Λ in terms of other astronomically measurable quantities. Specifically, it predicts that the spatial curvature parameter of the universe is $${\Omega _{\mathrm{k0}} \equiv -k/a_{0}^{2}H^{2}=-0.0055}$$ , which will be tested by Planck Satellite data. Our theory also creates a new picture of self-consistent quantum cosmological history. Springer Science+Business Media, LLC, 2011 Cosmology nationallicence Cosmological constant nationallicence Dark energy nationallicence Barrow John DAMTP, Centre for Mathematical Sciences, Cambridge University, CB3 0WA, Cambridge, UK aut Shaw Douglas DAMTP, Centre for Mathematical Sciences, Cambridge University, CB3 0WA, Cambridge, UK aut General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/10(2011-10-01), 2555-2560 0001-7701 43:10<2555 2011 43 10714 https://doi.org/10.1007/s10714-011-1199-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-011-1199-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Barrow John DAMTP, Centre for Mathematical Sciences, Cambridge University, CB3 0WA, Cambridge, UK aut NATIONALLICENCE 700 1- Shaw Douglas DAMTP, Centre for Mathematical Sciences, Cambridge University, CB3 0WA, Cambridge, UK aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/10(2011-10-01), 2555-2560 0001-7701 43:10<2555 2011 43 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer