Collins in Wonderland

Abstract

What is the asymptotic future of a scalar-field model if the assumption of isotropy is relaxed in generic, homogeneous space-times with general relativity? This paper is a continuation of our previous work on Bianchi cosmologies with a $p$-form field (where $p\in \{1,3\}$)---or equivalently: an inhomogeneous, mass-less scalar gauge field with a homogeneous gradient. In this work we investigate such matter sector in General Relativity, and restrict to space-times of the particular Bianchi types VI${}_0$ and VI${}_{\tilde{h}}$, where $\tilde{h}=h<0\cap \ne -1/9\cup -1$. We show that the previously found fabric of exact solutions named Wonderland are future attractors in $\mathcal{B}$(VI${}_0$) and $\mathcal{B}$(VI${}_{\tilde{h}}$), extending the Collins perfect-fluid equilibrium set to include a $p$-form (with $p\in \{1,3\}$). We also write down the line-element corresponding to Wonderland in VI${}_{\tilde{h}}$ and give explicit expressions for the underling gauge-potential $\varphi (t,\mathbf{x})$ corresponding to this solution. Simulation of a path approaching Wonderland in Bianchi type I is also given.

arXiv comment27 pages, 4 figures

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