Comparing Inflationary Models in Extended Metric-Affine Theories of Gravity

Understand

We study slow-roll inflation as a common feature in Metric-affine Theories of Gravity.

• In particular, we take into account extended metric, teleparallel and symmetric-teleparallel theories of gravity, based on different geometric invariants, discussing analogies and differences.
• The analysis for each model is performed in two approaches.
• First, we focus on the {\it potential-slow-roll approach} by studying the reconstructed potentials for different forms of the extended models related to the considered gravitational theory in the Einstein frame.