Gluonic vacuum, q-theory, and the cosmological constant
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2009
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Language
en
Pages
1-8
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Physical Review D, Volume 79, issue 6
Abstract
In previous work, q-theory was introduced to describe the gravitating macroscopic behavior of a conserved microscopic variable q. In this article, the gluon condensate of quantum chromodynamics is considered in terms of q-theory. The remnant vacuum energy density (i.e., cosmological constant) of an expanding universe is estimated as K3QCD/E2Planck, with string tension KQCD≈(102MeV)2 and gravitational scale EPlanck≈1019GeV. The only input for this estimate is general relativity, quantum chromodynamics, and the Hubble expansion of the present Universe.Description
Keywords
cosmological constant, gluonic vacuum, q-theory
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Citation
Klinkhamer , F R & Volovik , G 2009 , ' Gluonic vacuum, q-theory, and the cosmological constant ' , Physical Review D , vol. 79 , no. 6 , 063527 , pp. 1-8 . https://doi.org/10.1103/PhysRevD.79.063527