English

Bianchi cosmologies with $p$-form gauge fields

General Relativity and Quantum Cosmology 2018-04-10 v2 Cosmology and Nongalactic Astrophysics High Energy Physics - Theory Mathematical Physics math.MP

Abstract

In this paper the dynamics of free gauge fields in Bianchi type I-VIIh_{h} space-times is investigated. The general equations for a matter sector consisting of a pp-form field strength (p{1,3}p\,\in\,\{1,3\}), a cosmological constant (44-form) and perfect fluid in Bianchi type I-VIIh_{h} space-times are computed using the orthonormal frame method. The number of independent components of a pp-form in all Bianchi types I-IX are derived and, by means of the dynamical systems approach, the behaviour of such fields in Bianchi type I and V are studied. Both a local and a global analysis are performed and strong global results regarding the general behaviour are obtained. New self-similar cosmological solutions appear both in Bianchi type I and Bianchi type V, in particular, a one-parameter family of self-similar solutions,"Wonderland (λ\lambda)" appears generally in type V and in type I for λ=0\lambda=0. Depending on the value of the equation of state parameter other new stable solutions are also found ("The Rope" and "The Edge") containing a purely spatial field strength that rotates relative to the co-moving inertial tetrad. Using monotone functions, global results are given and the conditions under which exact solutions are (global) attractors are found.

Keywords

Cite

@article{arxiv.1712.08752,
  title  = {Bianchi cosmologies with $p$-form gauge fields},
  author = {Ben David Normann and Sigbjørn Hervik and Angelo Ricciardone and Mikjel Thorsrud},
  journal= {arXiv preprint arXiv:1712.08752},
  year   = {2018}
}

Comments

42 pages, 6 figures, 6 tables in text. V2: minor changes, matches the version published in CQG

R2 v1 2026-06-22T23:28:05.409Z