Spinor model of a perfect fluid and their applications in Bianchi type-I and FRW models

TL;DR

This paper models perfect fluids and dark energy in the universe using a nonlinear spinor field, analyzing their effects in both anisotropic Bianchi type-I and isotropic FRW cosmological models.

Contribution

It introduces a spinor field approach to simulate matter and dark energy effects in different cosmological models, providing a novel framework for understanding universe evolution.

Findings

Spinor fields effectively simulate perfect fluids and dark energy.

The model applies to both anisotropic and isotropic universe scenarios.

Results offer new insights into matter influence on cosmic evolution.

Abstract

Different characteristic of matter influencing the evolution of the Universe has been simulated by means of a nonlinear spinor field. Exploiting the spinor description of perfect fluid and dark energy evolution of the Universe given by an anisotropic Bianchi type-I (BI) or isotropic Friedmann-Robertson-Walker (FRW) one has been studied.