Dark spinors with torsion in cosmology

Abstract

We solve one of the open problems in Einstein-Cartan theory, namely we find a natural matter source whose spin angular momentum tensor is compatible with the cosmological principle. We analyze the resulting evolution equations and find that an epoch of accelerated expansion is an attractor. The torsion field quickly decays in that period. Our results are interpreted in the context of the standard model of cosmology.

7 pages, 3 figures; reference added, minor improvements

References in corpus (17)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
• Metric-Affine Gauge Theory of Gravity: Field Equations, Noether Identities, World Spinors, and Breaking of Dilation Invariance
• Spin half fermions with mass dimension one: theory, phenomenology, and dark matter
• Dark matter: A spin one half fermion field with mass dimension one?
• CMB Anisotropies and Inflation from Non-Standard Spinors
• Where are ELKO Spinor Fields in Lounesto Spinor Field Classification?
• Dark spinor inflation -- theory primer and dynamics
• Dark Energy Model with Spinor Matter and Its Quintom Scenario
• The Einstein-Cartan-Elko system
• The Einstein-Elko system -- Can dark matter drive inflation?
• Status of non-Riemannian cosmology
• The Einstein static universe with torsion and the sign problem of the cosmological constant
• Spin-driven inflation
• Dynamic Scalar Torsion and an Oscillating Universe
• Testing non-standard cosmological models with supernovae
• Complementary constraints from FR IIb radio galaxies and X-ray gas mass fractions in clusters on non-standard cosmological models

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