publication . Preprint . 2012

Holographic Bound in Quantum Field Energy Density and Cosmological Constant

Castorina, Paolo;
Open Access English
  • Published: 15 Jul 2012
The cosmological constant problem is reanalyzed by imposing the limitation of the number of degrees of freedom (d.o.f.) due to entropy bounds directly in the calculation of the energy density of a field theory. It is shown that if a quantum field theory has to be consistent with gravity and holography, i.e. with an upper limit of storing information in a given area, the ultraviolet momentum cut-off is not the Planck mass, M_p, as naively expected, but M_p/N_U^(1/4) where N_U is the number of d.o.f. of the universe. The energy density evaluation turns out completely consistent with Bousso's bound on the cosmological constant value. The scale M_p/N_U^(1/4), that i...
arxiv: Astrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: General Relativity and Quantum Cosmology, High Energy Physics - Theory
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