Geometrical origin of inflation in Weyl-invariant Einstein-Cartan gravity

TL;DR

This paper demonstrates that a scalar field inherent in Weyl-invariant Einstein-Cartan gravity can cause inflation, aligning well with observational data.

Contribution

It reveals the geometric origin of inflation within a Weyl-invariant Einstein-Cartan framework, highlighting a novel mechanism for early universe expansion.

Findings

Scalar degree of freedom can drive inflation

Predictions match observational data

Provides geometric insight into inflationary origin

Abstract

It is shown that the scalar degree of freedom built-in in the quadratic Weyl-invariant Einstein-Cartan gravity can drive inflation and with predictions in excellent agreement with observations.