Quantum Gravity Effect in Torsion Driven Inflation and CP violation

TL;DR

This paper explores how torsion and quantum gravity corrections influence inflation and CP violation, deriving an effective potential and setting bounds on the CP-violating parameter using cosmological data.

Contribution

It introduces a novel effective potential for inflation derived from torsion and quantum gravity, and constrains the CP-violating parameter using observational data.

Findings

Bound on CP-violating $ heta$ parameter: ${ m O}(10^{-10})< heta<{ m O}(10^{-9})$

Derived effective potential from torsion and quantum gravity corrections

Implications for inflationary models and CP violation constraints

Abstract

We have derived an effective potential for inflationary scenario from torsion and quantum gravity correction in terms of the scalar field hidden in torsion. A strict bound on the CP violating $\theta$ parameter, ${\cal O}(10^{-10})<\theta<{\cal O}(10^{-9})$ has been obtained, using {\tt Planck+WMAP9} best fit cosmological parameters.