Gluonic vacuum, q-theory, and the cosmological constant

Research output: Contribution to journalArticleScientificpeer-review


Research units


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.


Original languageEnglish
Article number063527
Pages (from-to)1-8
JournalPhysical Review D
Issue number6
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

    Research areas

  • cosmological constant, gluonic vacuum, q-theory

Download statistics

No data available

ID: 3611472