Gluonic vacuum, q-theory, and the cosmological constant

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal
View/Open full text file from the Research portal
Date
2009
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
1-8
Series
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
Other note
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