An introduction to the dark energy problem

TL;DR

This paper reviews the history and fundamental issues of dark energy and the cosmological constant, highlighting the need for solutions to reconcile its existence with theoretical physics.

Contribution

It provides a concise overview of dark energy's origins, history, and the core problems related to its magnitude and theoretical consistency.

Findings

Highlights the cosmological constant's historical evolution.

Identifies fundamental problems with dark energy's magnitude.

Emphasizes the need for solutions to theoretical inconsistencies.

Abstract

In this work we review briefly the origin and history of the cosmological constant and its recent reincarnation in the form of the dark energy component of the universe. We also comment on the fundamental problems associated to its existence and magnitude which require and urgent solution for the sake of the internal consistency of theoretical physics.