Non-static spinning fluid model in Einstein–Cartan theory of gravitation

Abstract By harnessing the power of differential forms, especially suited for a non-Riemannian space-time of Einstein–Cartan theory, we have successfully solved the field equations for a Weyssenhoff fluid-a fascinating source of gravitation and spin. Our innovative approach is based on a simple yet...

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Bibliographic Details
Main Authors: L. N. Katkar, D. R. Phadatare
Format: Article
Language:English
Published: SpringerOpen 2025-03-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-025-13967-8
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Summary:Abstract By harnessing the power of differential forms, especially suited for a non-Riemannian space-time of Einstein–Cartan theory, we have successfully solved the field equations for a Weyssenhoff fluid-a fascinating source of gravitation and spin. Our innovative approach is based on a simple yet elegant equation of state, with two distinct cases: (i) $$\rho $$ ρ = p,  and (ii) $$\rho = 3p$$ ρ = 3 p , and an exponential relationship $$e^{\mu } = e^{n\nu }$$ e μ = e n ν . We explore the fascinating physical and geometrical properties of these ground-breaking solutions, uncovering new insights into the mysteries of gravitation and the behavior of matter under extreme conditions.
ISSN:1434-6052