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arXiv · 2609.04810

Dirac fields in LRS III spacetimes: a dynamical systems analysis

Fabrizio Esposito·Sante Carloni·Stefano Vignolo
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Abstract

Within the $1+1+2$ covariant formalism, we investigate Locally Rotationally Symmetric (LRS) class III spacetimes sourced by a self-gravitating Dirac field expressed in polar form. By recasting the covariant field equations into an autonomous dynamical system, we perform a phase-space analysis of their solutions. We show that the cosmological evolution asymptotically converges to a contracting Bianchi I spacetime, a result also supported by numerical integrations of the system.

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Fabrizio Esposito, Sante Carloni, Stefano Vignolo. 2026-09-04. Dirac fields in LRS III spacetimes: a dynamical systems analysis. https://arxiv.org/abs/2609.04810

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