# Fermionic origin of dark energy in the inflationary universe from Unified Spinor Fields

## TL;DR

This paper proposes that massive fermion spinor fields originating from quantum geometric structures could be the fundamental source of dark energy, explaining the cosmological constant during inflation.

## Contribution

It introduces a novel framework where spinor fields from quantum spacetime geometry account for dark energy and the cosmological constant in the inflationary universe.

## Key findings

- Fermion fields from quantum geometry can generate the cosmological constant.
- Dark energy during inflation may originate from primordial massive fermions.
- The model unifies spinor fields with all known interactions including gravity.

## Abstract

In this work we explore the boundary conditions in the Einstein-Hilbert action, by considering a displacement from the Riemannian manifold to an extended one. The latter is characterized by including spinor fields into the quantum geometric description of a noncommutative spacetime. These fields are defined on the background spacetime, emerging from the expectation value of the quantum structure of spacetime generated by matrices that comply with a Clifford algebra. We demonstrate that spinor fields are candidate to describe all known interactions in physics, with gravitation included. In this framework we demonstrate that the cosmological constant $\Lambda$, is originated exclusively by massive fermion fields that would be the primordial components of dark energy, during the inflationary expansion of an universe that describes a de Sitter expansion.