The non-singular Trautman-Kopczy\'nski big-bang model and a torsional spinor description of dark matter

TL;DR

This paper proposes a non-singular big bang model where torsion and spinor fields naturally describe dark matter, suggesting its mass originates from interactions with spacetime torsion within Einstein-Cartan theory.

Contribution

It introduces a novel torsion-based spinor formalism for dark matter, linking its mass to interactions with spacetime torsion in a non-singular cosmological model.

Findings

Dark matter modeled as uncharged spin-one fields in torsionful spacetime

Dark matter mass arises from field-torsion interactions

Non-singular big bang scenario with torsion effects

Abstract

A view is taken up whereby the non-singular Trautman-Kopczy\'nski big-bang creation of the Universe produced a highly torsional hot state at early stages of the cosmic evolution which particularly brought about the formation of a dark matter cloud. It is thus assumed that the combination of Einstein-Cartan's theory with the torsionful version of the two-component {\epsilon}-formalism of Infeld and van der Waerden supplies a natural local description of dark matter in terms of uncharged spin-one massive fields. In the case of either handedness, the pertinent spinor field equation arises directly from a suitable form of the world Bianchi identity. It appears that each such field equation bears a term that is thought of as carrying part of the information on the mass of the fields. The whole information turns out to be extracted by well prescribed derivatives of certain couplings involving the fields and spinor torsion pieces in such a way that the mass of dark matter is really thought of as arising from the interaction between the fields and spinor torsion.