English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Cosmic strings, as topological spacetime defects, show striking resemblanceto defects in solid continua: distortions, which can be classified intodisclinations and dislocations, are line-like defects characterized by a deltafunction-valued curvature and torsion distribution giving rise to rotationaland translational holonomy. We exploit this analogy and investigate howdistortions can be adapted in a systematic manner from solid state systems toEinstein-Cartan gravity. As distortions are efficiently described within theframework of a $SO(3) {\rlap{$\supset$}\times}} T(3)$ gauge theory of solidcontinua with line defects, we are led in a straightforward way to a Poincar\'egauge approach to gravity which is a natural framework for introducing thenotion of distorted spacetimes. Constructing all ten possible distortedspacetimes, we recover, inter alia, the well-known exterior spacetime of aspin-polarized cosmic string as a special case of such a geometry. In a secondstep, we search for matter distributions which, in Einstein-Cartan gravity, actas sources of distorted spacetimes. The resulting solutions, appropriatelymatched to the distorted vacua, are cylindrically symmetric and are interpretedas spin-polarized cosmic strings and cosmic dislocations.Comment: 24 pages, LaTeX, 9 eps figures; remarks on energy conditions added,  discussion extended, version to be published in Class. Quantum Gra

Volterra distortions, spinning strings, and cosmic defects