Monologue of a graviton in identity crisis. Or on Alternative Theories of Gravity. (In Spanish)

Abstract

The era of high precision Cosmology has shown our ignorance about the composition of the Universe. In this context, there has been a renewed interest on Alternative Theories of Gravity. Through the experience of a graviton measured by the LIGO collaboration, we shall understand the conceptual framework of those theories. They provide us with a theoretical construction where we can contrast the predictions of General Relativity and a possible scenario to describe the accelerated expansion of our Universe without assuming the existence of dark components. During the dawn of gravitational wave astronomy, gravitation is already promising to be one of the most fascinating fields of research of the XXI century.

4 pages. In Spanish. This is an invited contribution to be published in the Spanish Journal of Physics (Royal Spanish Physics Society)

References in corpus (5)

• The Confrontation between General Relativity and Experiment
• Dark Energy after GW170817: dead ends and the road ahead
• Sequestering the Standard Model Vacuum Energy
• Nonequivalence of equivalence principles
• Horndeski theories self-tuning to a de Sitter vacuum