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Kinematics of Einstein-Cartan universes
(American Physical SocietyPhysical Review D - Particles, Fields, Gravitation and Cosmology, 2017-05-08)
We analyze the kinematics of cosmological spacetimes with nonzero torsion, in the framework of the classical Einstein-Cartan gravity. After a brief introduction to the basic features of spaces with nonvanishing torsion, ...
Relativistic magnetised perturbations: Magnetic pressure versus magnetic tension
(IoPClassical and Quantum Gravity, 2018-05-16)
We study the linear evolution of magnetised cosmological perturbations in the post-recombination epoch. Using full general relativity and adopting the ideal magnetohydrodynamic approximation, we refine and extend the ...